When a young woman is found shot to death in her home, police are baffled; then a cryptic letter from a mysterious source sends the investigation down a twisting road to the truth.

A college student disappears in broad daylight after an afternoon of sunbathing at a busy lake; the mystery deepens when her wallet is found along with personal items belonging to another victim of a violent crime.

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

Some grudges die hard, but this neighbor's won't die until his enemies do.

A Virginia man insists, "What's mine is mine, and what's yours is mine.".

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

Some grudges die hard, but this neighbor's won't die until his enemies do.

A Virginia man insists, "What's mine is mine, and what's yours is mine.".

Investigators work to solve a double homicide in the small town of Hudson, Wisc.

Some grudges die hard, but this neighbor's won't die until his enemies do.

A Virginia man insists, "What's mine is mine, and what's yours is mine.".

In Wisconsin, a burglar in handcuffs escapes police custody in a squad car and goes into hiding; in Oklahoma, a simple conversation ends up in a shoot-out at a gas station with an officer down.

In California, a body in the woods triggers a high-speed chase; the search for a reckless Utah motorcyclist complicates when he steals a squad car with access to the guns; in Illinois, officers race to save a couple trapped in their burning home.

In Michigan, the family of a shooter begs him to give himself up; in Florida, a day cruise goes wrong and rescuers race to save two drowning families; in Detroit, suspects stealing marijuana flee at high speed through the city.

In Ohio, a hostage situation turns into a firefight; a routine traffic stop in Georgia escalates into a high-speed chase; in Texas, a fleeing suspect crashes into a truck, and officers must fight the inferno to help an innocent victim.

In New Mexico, officers chasing a robbery suspect go down in a hail of bullets from a heavily armed suspect; in Ohio, a father threatens to blow up his children and an entire neighborhood with over 25,000 pounds of explosives.

In Florida, police tracking carjackers find themselves pursuing two separate suspects; a home invasion in Michigan takes a turn when the suspect takes the homeowners and their child hostage and opens fire on officers.

An ex-con kidnaps a baby at gunpoint in Utah; during a high-speed chase, the suspect calls 911 and threatens to kill the child, firing at officers to prove he is serious; he offers the police a trade: the baby's life for his freedom.

The true stories behind crimes that transcended headlines and became part of popular culture are uncovered with first-hand interviews that reveal shocking twists, new evidence and unexpected resolutions.

In Wisconsin, a burglar in handcuffs escapes police custody in a squad car and goes into hiding; in Oklahoma, a simple conversation ends up in a shoot-out at a gas station with an officer down.

In California, a body in the woods triggers a high-speed chase; the search for a reckless Utah motorcyclist complicates when he steals a squad car with access to the guns; in Illinois, officers race to save a couple trapped in their burning home.

In Michigan, the family of a shooter begs him to give himself up; in Florida, a day cruise goes wrong and rescuers race to save two drowning families; in Detroit, suspects stealing marijuana flee at high speed through the city.

In Ohio, a hostage situation turns into a firefight; a routine traffic stop in Georgia escalates into a high-speed chase; in Texas, a fleeing suspect crashes into a truck, and officers must fight the inferno to help an innocent victim.

In New Mexico, officers chasing a robbery suspect go down in a hail of bullets from a heavily armed suspect; in Ohio, a father threatens to blow up his children and an entire neighborhood with over 25,000 pounds of explosives.

In Florida, police tracking carjackers find themselves pursuing two separate suspects; a home invasion in Michigan takes a turn when the suspect takes the homeowners and their child hostage and opens fire on officers.

An ex-con kidnaps a baby at gunpoint in Utah; during a high-speed chase, the suspect calls 911 and threatens to kill the child, firing at officers to prove he is serious; he offers the police a trade: the baby's life for his freedom.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A handyman, living rent-free in the home of a generous friend, grows increasingly paranoid about his neighbors; filming them constantly and fighting with them incessantly until conflict escalates out of control and culminates in explosive violence.

Two women with a shared wall between their townhouses become increasingly volatile with each other; food fights, physical altercations and vandalism come to a bloody climax.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A handyman, living rent-free in the home of a generous friend, grows increasingly paranoid about his neighbors; filming them constantly and fighting with them incessantly until conflict escalates out of control and culminates in explosive violence.

Two women with a shared wall between their townhouses become increasingly volatile with each other; food fights, physical altercations and vandalism come to a bloody climax.

Police must use forensic science to solve the mystery of a prominent businessman whose burnt body is discovered.

A handyman, living rent-free in the home of a generous friend, grows increasingly paranoid about his neighbors; filming them constantly and fighting with them incessantly until conflict escalates out of control and culminates in explosive violence.

Two women with a shared wall between their townhouses become increasingly volatile with each other; food fights, physical altercations and vandalism come to a bloody climax.

People Magazine investigates the 1990 murder of Dianne Hood; nobody can understand why someone would murder the well-liked mother, but the investigation uncovers two broken marriages, an extramarital affair and one man trying to control two women.

People Magazine editorial director Cynthia Sanz introduces the story of a sadistic murderer who terrorizes Dallas in 1991; multiple women are found murdered with their eyeballs surgically removed, leading media to dub him The Eyeball Killer.

In 1992, 11-year-old Shauna Howe disappears as she returns home from a Girl Scouts Halloween party; when Shauna's body shows up in a local creek, her murder sends shockwaves through her community.

In 1993, investigators find the body of a young Florida man in the Everglades; when homicide investigators question his group of friends, they uncover a sordid world of sex, prostitution, and bullying.

People Magazine editors present the story of Claudette Ficik, a Georgia college student who disappears while driving home to see her parents; suspects include an infatuated classmate, an ex, and the man she planned to bring home on that trip.

The 1996 disappearance of New Jersey businessman Frank Black Jr. captivates readers of People Magazine; investigators searching for Black believe he may be dead and can't find his body.

People Magazine presents the story of Kim Medlin, whose 1997 disappearance shatters the close-knit community of Monroe, N.C.; when police begin investigating, they uncover troublesome connections among just about everyone in Kim's life.

Retaliation and revenge unfold when friendships turn into furious feuds; as each feud escalates, one-time friends, family, and partners go from minor disagreements to murder; people from both sides of the feud tell their story of revenge gone wrong.

People Magazine investigates the 1990 murder of Dianne Hood; nobody can understand why someone would murder the well-liked mother, but the investigation uncovers two broken marriages, an extramarital affair and one man trying to control two women.

People Magazine editorial director Cynthia Sanz introduces the story of a sadistic murderer who terrorizes Dallas in 1991; multiple women are found murdered with their eyeballs surgically removed, leading media to dub him The Eyeball Killer.

In 1992, 11-year-old Shauna Howe disappears as she returns home from a Girl Scouts Halloween party; when Shauna's body shows up in a local creek, her murder sends shockwaves through her community.

In 1993, investigators find the body of a young Florida man in the Everglades; when homicide investigators question his group of friends, they uncover a sordid world of sex, prostitution, and bullying.

People Magazine editors present the story of Claudette Ficik, a Georgia college student who disappears while driving home to see her parents; suspects include an infatuated classmate, an ex, and the man she planned to bring home on that trip.

The 1996 disappearance of New Jersey businessman Frank Black Jr. captivates readers of People Magazine; investigators searching for Black believe he may be dead and can't find his body.

People Magazine presents the story of Kim Medlin, whose 1997 disappearance shatters the close-knit community of Monroe, N.C.; when police begin investigating, they uncover troublesome connections among just about everyone in Kim's life.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A former cop is moving into a close-knit neighborhood; conflict arises with the whole community over dogs, noise, and other disturbances that keep piling on and ratcheting up until a boiling point is reached, guns are drawn, and blood is spilled.

A former police chief gets into constant conflicts with a young renter who doesn't respect his authority; the war between them intensifies until blood flows down their street.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A former cop is moving into a close-knit neighborhood; conflict arises with the whole community over dogs, noise, and other disturbances that keep piling on and ratcheting up until a boiling point is reached, guns are drawn, and blood is spilled.

A former police chief gets into constant conflicts with a young renter who doesn't respect his authority; the war between them intensifies until blood flows down their street.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

A former cop is moving into a close-knit neighborhood; conflict arises with the whole community over dogs, noise, and other disturbances that keep piling on and ratcheting up until a boiling point is reached, guns are drawn, and blood is spilled.

A former police chief gets into constant conflicts with a young renter who doesn't respect his authority; the war between them intensifies until blood flows down their street.

After three divorces between them, Roberta and Ken Samard seem to have finally found a lasting marriage; 15 years on, they appear to be living their dream life in Oregon, until an early morning call to 911 exposes the ugly truth.

A home invasion in California leaves a family shattered and detectives scrambling for answers; as investigators hunt down the perps over several years, they join the dots to outline an evil plot born from greed and a need for total control.

Heavily pregnant Colorado native Shanna Vandewege supports her husband Craig's plan to move to Texas for work; the birth of a baby makes up for Shanna's separation from family, but someone is about to exploit her isolation as an outlet for rage.

Molly McAfee and her partner, Adam Buchanan, cherish weekends at their cabin in the woods with all the family, but someone has plans to burn everything down to take what they want.

David Sumney Sr. and his wife, Margaret, devote their lives to spoiling their only son, David; however, everything comes at a price, and when his parents divorce, David Jr.'s anger escalates, resulting in the deadliest of sins.

Michelle Rogers and Matt Terry are together and share a son, Matt, but he has a dark side that comes out when he drinks; his rage explodes, leaving Michelle fighting for her life; Matt serves prison time, but tragedy strikes again when he gets out.

Vacations create new experiences and memories that last a lifetime; every misadventure, from spring break smackdowns to terrible tourist fails.

As travel stats reach new heights and patience hits rock bottom, millions of conflicts erupt in planes, trains, and automobiles worldwide; from road rage to high-altitude meltdowns, it's a wild ride in the world of travel.

Kayla's mother pays a hefty price when she breaks free of her husband Richard; he plots a final and brutal revenge.

A detective discovers that he knows a kidnapper personally and that getting the victim back alive now hinges on his relationship with a maniac.

After three divorces between them, Roberta and Ken Samard seem to have finally found a lasting marriage; 15 years on, they appear to be living their dream life in Oregon, until an early morning call to 911 exposes the ugly truth.

A home invasion in California leaves a family shattered and detectives scrambling for answers; as investigators hunt down the perps over several years, they join the dots to outline an evil plot born from greed and a need for total control.

Heavily pregnant Colorado native Shanna Vandewege supports her husband Craig's plan to move to Texas for work; the birth of a baby makes up for Shanna's separation from family, but someone is about to exploit her isolation as an outlet for rage.

Molly McAfee and her partner, Adam Buchanan, cherish weekends at their cabin in the woods with all the family, but someone has plans to burn everything down to take what they want.

David Sumney Sr. and his wife, Margaret, devote their lives to spoiling their only son, David; however, everything comes at a price, and when his parents divorce, David Jr.'s anger escalates, resulting in the deadliest of sins.

Michelle Rogers and Matt Terry are together and share a son, Matt, but he has a dark side that comes out when he drinks; his rage explodes, leaving Michelle fighting for her life; Matt serves prison time, but tragedy strikes again when he gets out.

A woman of faith, Susan Hernandez, is the last person police would expect to find murdered in her basement; searching for suspects, detectives turn over every stone in the hunt for Susan's killer, with a result that shakes the town to its core.

In Alabama, Brucetravius Frazier lies dead in his car from a gunshot wound to his head; a subsequent attempt on a witness's life causes police to realize they're not dealing with the average killer and must work quickly to bring them to justice.

Samantha Guthrie's parents desperately search for their missing child; as the police search reveals many players in this mystery, the common thread becomes the Lillian St. house; police aim to find the truth of what occurred within those walls.

In Grand Rapids, Mich., local mother Laurie Lundeberg lies dead from gunshots outside her home; detectives must track down the culprit and uncover their motive for shooting Laurie; making matters worse, the killer strikes again.

In Akron, Ohio, local antiques dealer Mary Kay Wohlfarth mysteriously vanishes into thin air; detectives race to find the elderly woman, leaving no stone unturned; however, finding Mary Kay might lead to more questions than answers.

The Waynesfield detectives are faced with their first murder mystery in decades.

Forty-year-old Jamie Baker leaves her family behind when someone shoots and kills her with a bullet through the back; the mystery deepens when police dig into her last moments and uncover what transpired the night of her death.

In what looks like a planned ambush, a young man turns up dead in his garage in Maricopa, Ariz.; police must look into a romance gone wrong to find his killer, and the child that the two may share.

A woman shocks the Titus County Sheriff's Office when she reports the kidnapping of her husband, Ernie; police race to find him, but things are not as they seem, and they must first figure out who is telling the truth to them to solve the case.

A retirement community in Evansville, Ind., reels when police find Odie Carrier Jr. mortally shot in his own home; puzzled even more by the surprising way he died, police must work quickly if they are going to find the person responsible.

In Jonesboro, Ark., authorities investigate the death of Steven McQuay after his badly beaten body turns up in the back of a pickup truck; when the results of the victim's toxicology report arrive, the entire investigation plunges into a tailspin.

A late-night shooting at an apartment complex in Hot Springs, Ark., leaves a young man dead in a bad drug deal and police question the person responsible for luring the victim to his death.

A woman of faith, Susan Hernandez, is the last person police would expect to find murdered in her basement; searching for suspects, detectives turn over every stone in the hunt for Susan's killer, with a result that shakes the town to its core.

In Alabama, Brucetravius Frazier lies dead in his car from a gunshot wound to his head; a subsequent attempt on a witness's life causes police to realize they're not dealing with the average killer and must work quickly to bring them to justice.

Samantha Guthrie's parents desperately search for their missing child; as the police search reveals many players in this mystery, the common thread becomes the Lillian St. house; police aim to find the truth of what occurred within those walls.

In Grand Rapids, Mich., local mother Laurie Lundeberg lies dead from gunshots outside her home; detectives must track down the culprit and uncover their motive for shooting Laurie; making matters worse, the killer strikes again.

In Akron, Ohio, local antiques dealer Mary Kay Wohlfarth mysteriously vanishes into thin air; detectives race to find the elderly woman, leaving no stone unturned; however, finding Mary Kay might lead to more questions than answers.

The Waynesfield detectives are faced with their first murder mystery in decades.

Forty-year-old Jamie Baker leaves her family behind when someone shoots and kills her with a bullet through the back; the mystery deepens when police dig into her last moments and uncover what transpired the night of her death.

In what looks like a planned ambush, a young man turns up dead in his garage in Maricopa, Ariz.; police must look into a romance gone wrong to find his killer, and the child that the two may share.

A woman shocks the Titus County Sheriff's Office when she reports the kidnapping of her husband, Ernie; police race to find him, but things are not as they seem, and they must first figure out who is telling the truth to them to solve the case.

A retirement community in Evansville, Ind., reels when police find Odie Carrier Jr. mortally shot in his own home; puzzled even more by the surprising way he died, police must work quickly if they are going to find the person responsible.

In Jonesboro, Ark., authorities investigate the death of Steven McQuay after his badly beaten body turns up in the back of a pickup truck; when the results of the victim's toxicology report arrive, the entire investigation plunges into a tailspin.

A late-night shooting at an apartment complex in Hot Springs, Ark., leaves a young man dead in a bad drug deal and police question the person responsible for luring the victim to his death.

George and Margaret Keller don't suspect that the man terrorizing their city could be a member of their own family; as it dawns on them that their son hides a sinister secret, they must decide whether or not to turn him in.

Eric Witte's father teaches him to protect his family, then grows increasingly violent, and Eric realizes his father as the evil from which his family needs protection.

Wallace Jeffs grows up believing his half-brother, Warren, will guide his family to salvation; when his nephew reveals Warren's true nature, Wallace must choose between loyalty to his family or to his church's new prophet.

Sherry Shafer never had a good relationship with her younger brother, Brian Britton, but she never expected to lose everything because of him; today, all she has left is the fear that one day he will return to finish what he started 26 years ago.

Dennis Ryan grows up believing his father's violent teachings will prepare him to save the lives of everyone in their farmhouse, then the teenager discovers the horrible truth.

When Gwen Bailey marries Norman Starnes, she counts herself lucky to land the most eligible bachelor in town; years later, she realizes she never really knew him at all and becomes his unwilling accomplice.

Years after discovering the horrifying truth, Cindy is still haunted by memories of the night she decided not to kill her husband, Bobby, in his sleep.

When Debra Davis' husband excoriates her for refusing to experiment sexually, she thought there was something wrong with her, never suspecting her husband's perversions are signs of something evil deep inside him.

Teenager Cindy Taylor's world is shattered by the sudden death of her father; while police say he died of a heart attack, Taylor will discover the cause of her father's death is just one of the deadly secrets her mother had been hiding from her.

Shelly Lietz has been afraid of her son ever since he was four years old, and her fear intensifies and grows more crippling as he gets older and more violent, turning her into a prisoner in her own home.

Melissa Holland begins to realize she's in mortal danger after marrying her high school sweetheart, Michael Overstreet.

Tiffany Shore grows up knowing her father is evil but keeps his secrets, then she escapes only to be devastated by the discovery that he has committed acts far more heinous than she could have ever imagined.

Sean Lewis isn't surprised to hear his brother, Patrick, has been arrested again, but this time around, Lewis learns he has been helping a monster lead a secret double life by repeatedly helping his brother get out of jams.

Alice Swanson envies her childhood neighbor William Jennings Choyce for his perfect life, then she marries him and realizes his life wasn't perfect below the surface.

When Susan Hamlin walks into a police station to confess she is part of a satanic cult and plans to murder her husband, no one can guess the truth is even more bizarre and sinister.

Host Donnie Wahlberg looks at some of the most frightening killers in history, retracing their backgrounds, psychology, motives and how they were eventually caught.

Lindsay Wrinkles always knew her father had a short temper, but she never expected to be on the run from him when she was only 14; as she runs from hideout to hideout, desperate to evade him, Wrinkles wonders what will happen if he ever finds her.

Actor Thom Bierdz brings his troubled younger brother, Troy, out to Los Angeles to help set him straight; however, Bierdz turns out to be wrong about being able to help his brother and pays with the life of a loved one.

When Walt Chavis joins the police force, he is prepared to risk his life, but he never imagines the greatest threat will come in the form of his own brother or that he will be forced to choose between his duty and his family.

Estephania LeBaron is raised to believe that her father and brothers are holy men who are justified in doing terrible things in God's name, then she begins to question everything when faced with having to do the same terrible things herself.

As children, Betty and Ulayla adored their little brother Johnny and tried to protect him; as they got older, Johnny did strange things, but they never believed he was capable of pure evil until he confessed a horrible secret.

Melissa Moore loved being daddy's little girl, and to her, her father, Keith Jesperson, could do no wrong; but as she got older, that admiration was replaced by fear, and then by the horror of learning how close she had come to being his next victim.

Karen strikes a deal to get her brother, Richard, out of her life, not knowing he will begin targeting his new wife, Vernetta; neither woman realizes how devastating Richard's impact will be on both of their lives.

Jill Garrison thinks her second chance at love will last forever; when her town is best by a killer, she fails to realize she has invited him into her home.

Linda Wittmier and Terry Jo Howard fall in love with James Michael Randall; both of them discover the monster lurking inside him without ever realizing how lucky they were to survive his twisted desire to kill.

As a young boy, Michael Blanco sees his mother do violent things straight out of the movies; he never once doubts she did them to keep their family safe until the day he learned the truth.

Charles Sexton believes his father, Eddie, is God; he and his siblings are loyal disciples until the family descends into madness, and Sexton finds out that crossing his parents means death.

As a little girl, Karen Kuzma adores her older brother, then she sees changes in him she doesn't understand; it never occurs to her that he will become the most infamous serial killer in American history.

When Joshua Hudnall goes off to war, he feels more at home than he ever did around his mother; while Joshua thinks he's escaped his mother's torment, she sets her sights on someone else and destroys their family from within.

When Lori McLeod falls for a man claiming to be an FBI agent, she feels certain she will always be safe; now, as the end of her life draws near, Lori vows that the murderer who betrayed her family will never become a free man.

Unlucky in love, Jamie Clark has high hopes after meeting Anthony Lord; by the time she learns about his perverted plans for her, she is already trapped.

Walter Stawicki always tries to protect his son, Ian, from evil, but Ian grows up to commit an unspeakable crime, making Walter realize he failed to protect his son and his community.

Felecia Collier almost kills Chester Turner but is relieved to hear he will survive; years later, that moment becomes the biggest regret of her life.

Cindy Best's friends and family all think she's crazy when she tells them her suspicions about her husband, Karl Karlsen; regardless, Cindy is determined to take matters into her own hands and prove he's a killer.

When Robin Lindsey is rescued from her mother's violence and goes to live with her father, she thinks she has cheated death; she has no way of knowing that her so-called savior is hiding something even worse.

When Brian Cargill divorces his wife, Kimberly, he thinks it's the end of the worst time of his life; instead, he finds himself in a desperate battle to save his son, Jamie, from her deadly wrath.

Linda is overjoyed after finding out that family friend Greg Scarpa is her biological father; when Scarpa's secrets come out, Linda realizes that being part of his family is not only dangerous, it is potentially deadly.

Brooke Lehman is raised to believe Kevin Dunlap is her father; her mother, Stephanie, keeps the truth a secret, but neither of them realize that Dunlap is keeping far more deadly secrets of his own.

Kat Harris and Marla Kreuger love Lawrence Harris each in her own way; they dismiss his dark obsession as childish and strange, but harmless; neither of them realize he is preparing to sacrifice innocent lives for his evil purpose.

Aswad Ayinde is known as an award-winning music video director, but his daughter, Aziza Kibibi, remembers him as a monster who did horrifying things in God's name; after years of suffering, she finally escapes to reveal the truth about him.

Norma Hawkins grows up fearing her mother, Shirley Allen, but when people start dying, Norma has to find the courage to turn her mother in to police.

When Alvin Bud Brown is arrested he tells an officer that he is just like Hannibal Lecter; to his wife, Jackie, the man she shared a bed with for years appeared to be gentle and loving until the Thanksgiving Day when she discovered the truth.

As a little girl, Karen Kuzma adores her older brother, then she sees changes in him she doesn't understand; it never occurs to her that he will become the most infamous serial killer in American history.

When Joshua Hudnall goes off to war, he feels more at home than he ever did around his mother; while Joshua thinks he's escaped his mother's torment, she sets her sights on someone else and destroys their family from within.

When Lori McLeod falls for a man claiming to be an FBI agent, she feels certain she will always be safe; now, as the end of her life draws near, Lori vows that the murderer who betrayed her family will never become a free man.

Unlucky in love, Jamie Clark has high hopes after meeting Anthony Lord; by the time she learns about his perverted plans for her, she is already trapped.

When Reginald Brooks begins acting strangely, Beverly Stephens worries that her husband's bizarre behavior is a warning sign that something wasn't right, but never suspected there was a killer lurking inside him.

For 17 years, Kathy Swanson fears her son, Michael, will harm someone; she tries in vain to convince people that there is something different about Michael, then her worst nightmare comes true.

William Knorr's mother, Theresa, always threatened that if she ever went to jail for what she had done, she would take him down with her; after years spent helping her keep the horrors secret, he may go to jail with her.

Pam Jacobs spends her childhood on the run from the law, but she has no idea her father, Charles Sinclair, is a wanted man until the day the FBI catches up with them.

When James Henslee realizes he is the police's prime suspect, he can't believe it but he attempts to convince them that someone he had once looked up to was the one capable of murder.

As a child, Corey Breininger's stepmother, Judith Hawkey, coerces him into doing something horrible; he keeps her deadly secret for years, too afraid to tell anyone the truth.

Robert Foust contemplates killing his son, Aaron, as the only way to prevent Aaron from becoming a murderer; instead, Robert chooses to put himself and his son in God's hands, and God's plan makes him question everything.

Joylynn Martinez sometimes wakes up and cannot remember what happened the night before; she thinks she must've had too much to drink, never suspecting that her husband, Robert Howard Bruce, was responsible, and that he was just getting started.

Travis Spencer thinks that the cruel pranks played by his older brother, Timothy, were ultimately harmless; it turns out that older brother Timothy is using younger brother Travis as practice for a gruesome future.

Michele Ward is glad that her husband, Richard Daniel Starrett, doesn't mind her frequent trips to visit her parents; Michele could never guess the reason that he sends her away is because his sick perversions are getting harder and harder to hide.

It has been more than 25 years, yet Joyce Alexander is still terrified of her son, William Patrick Alexander; she fears he holds her responsible for his horrifying crime, and is convinced he is plotting his revenge from prison.

Edward Pehowic harbors dark secrets before he marries Robin Healey, and she'd catch only glimpses of her husband's dark side, but when she finally escapes from him, she realizes just how evil he is.

John Duck spends his entire life fearing the day his brother Kevin would finally kill someone, but when John discovers his brother is actually a murderer, he still isn't ready to face that Kevin had been born a killer.

Ronald and Patty had always seen the signs that their older brother, Bernard Eugene Giles, had a darker side, but when Gene finally let loose the monster lurking inside, they couldn't help but wonder how things had gone so wrong.

When Clare Bradburn's ex-husband, Ed, suddenly confesses to his crime after 26 years, she thinks she finally has justice, and that the nightmare she lived for decades would end; she never expects that her nightmare would continue.

When Tim Kreider discovers proof that his son, Alec, was responsible for a horrific crime, he knows what the right thing to do is; his instincts as a father tell him something else.

When Elizabeth Flores was a child, her sister, Louise, tried to shield her from a horrible family secret; when Louise met David Turpin, that all changed.

Facing an influx of drug problems, the Winchester PD joins forces with a regional task force and takes on a suspected fentanyl trafficker, a dealer reportedly selling cocaine around children and an ex-felon who may have ties to a major supplier.

Timothy Bass had gotten away with murder for decades, telling his wife, Gina, that he enjoyed working the night shift to make extra money; Gina believed him until she uncovered his secret and was left wondering what evil her husband had done.

It never occurred to Shirley Gaskins that the father she adored could be one of the most prolific serial killers in America, but the more people vanished without explanation, the harder it was to deny.

Richard and Ryan Girgis knew their father, Magdi, was not a particularly good father, but when their family is torn apart, the brothers feel they knew he was evil all along.

Jack Roy Spillman starts collecting wolf memorabilia, and his sisters think it's an odd hobby; when they learn of horrific things he's done, they realize some people may have been right when they called him more animal than human.

As a child, Corey Breininger's stepmother, Judith Hawkey, coerces him into doing something horrible; he keeps her deadly secret for years, too afraid to tell anyone the truth.

Robert Foust contemplates killing his son, Aaron, as the only way to prevent Aaron from becoming a murderer; instead, Robert chooses to put himself and his son in God's hands, and God's plan makes him question everything.

Joylynn Martinez sometimes wakes up and cannot remember what happened the night before; she thinks she must've had too much to drink, never suspecting that her husband, Robert Howard Bruce, was responsible, and that he was just getting started.

The Barnetts adopt Natalia, an alleged six-year-old orphan from Ukraine, but things may not be what they seem; the couple fears they may have an adult in their home who could want to hurt them.

The Barnett's adoption of Natalia, an alleged 6-year-old Ukrainian orphan, turns into a nightmare when they learn she may not be who she says she is; with suspicions mounting, the Barnetts discover they may have an adult stranger in their home.

At Michael's trial, he turns on his former wife while the judge makes a ruling that could help his case; Kristin's trial looms in the distance as Michael awaits his fate, and a mysterious witness has information that could impact both Barnetts.

New interviews from Beth Karas cover all the twists, turns and reveals of Season 1 in anticipation of "The Curious Case Of Natalia Grace: Natalia Speaks.".

Natalia finally shares her story with the world and challenges the lies she claims the Barnetts have been telling about her; Natalia proves whether she is a child or an adult and is ready to confront Michael.

Natalia details the horrifying multi-faceted conspiracy by the Barnetts to get rid of her from having her re-aged as an adult to attempting to institutionalize her to even worse; then, Natalia prepares to confront Michael again.

Natalia confronts Michael one last time to get the answers she seeks; finally, Natalia is ready to become part of the Mans family.

Paul Bernardo and Karla Homolka embark on a passionate love affair; then, missing schoolgirls Leslie Mahaffy and Kristen French turn up dead, and a battered and bruised Homolka tells police Bernardo is the murderer.

Karla Homolka tells the police that her husband, Bernardo, recorded videos of his assaults on schoolgirls Leslie Mahaffy and Kristen French; police are unable to find the tapes despite an exhaustive search.

Paul Bernardo's lawyers find the videotapes of the assaults on Leslie Mahaffy and Kristen French; the tapes reveal Homolka is complicit in the crimes; unaware of this new information, prosecutors make a controversial deal with Homolka.

A mysterious shooter attacks a loving father.

Paul Bernardo is convicted of the murders of Leslie Mahaffy and Kristen French and sentenced to life in prison; Homolka is released after serving just 12 years for her part in the crimes; today, she walks around as a free citizen.

Jared Fogle weighs a life-threatening 425lbs, then invents a unique diet and loses 200lbs eating only Subway sandwiches; the company makes him their spokesperson catapulting him to stardom, but behind his lovable facade lurks a dangerous secret.

Radio journalist Rochelle Herman undertakes a covert mission to expose Subway spokesperson Jared Fogle as a child sex predator, but her investigation takes a dark turn; the lives of two young girls change when they encounter the Subway Guy.

Rochelle Herman's undercover investigation to expose Jared Fogle, aka the Subway Guy, as a child sex predator destroys her life; a bizarre and shocking sequence of events results in the downfall of this pop culture icon.

Vicky Ward profiles the life of media mogul Robert Maxwell; Maxwell's story helps to pull back the veil on his daughter Ghislaine's mysterious past.

Ghislaine Maxwell turns to Jeffrey Epstein for financial security after her father dies, and she introduces him to the rich and powerful; prosecutors say Macwell provided introductions of a very different nature.

Vicky Ward looks at the web of men around Jeffrey, even after he's a convicted sex offender; Ghislaine tries to escape his orbit, but she's drawn back by a revealing photo.

Terra Newell her mother, Debra, discover evil tendencies in Debra's new man, John Meehan, but Terra never imagined she would ultimately be forced to kill him.

Christina Hildreth unwittingly helped Shawn Grate clean up his first crime scene, she didn't realize what she was doing.

Teri Knight spent weeks driving cross-country, desperately searching for the secret her ex-husband, Manuel Gehring, took to his grave; it took years before a stranger finally solved the mystery.

Shirley Furgala helps her mother, Betty Lou Beets, drag a dead body into the yard and bury it, but Shirley doesn't know that this won't be the last time her mother will ask for help.

Questions persist surrounding Cameron Todd Willingham's conviction and death sentence, but according to Stacy Kuykendall, who knew him better than anyone, Cameron is a monster who was guilty as charged and deserved to die.

After finding her name on a bullet, a woman fears her son has lethal plans.

Sharon is amazed to be alive after learning about her ex's twisted crimes.

Kelly Pletcher elopes with Wayne Adam Ford, who begins to descend into an obsessive world of twisted sexual fetishes and demeaning desires, and Kelly's short-lived fairy tale becomes a nightmare from which she is desperate to escape.

When Eric Nance asks his sister, Belinda, to find and destroy a murder weapon, he expects her to protect him; when Belinda finds it, she is torn between family loyalty and doing what she knows to be right.

In 1989, Jessi Toronjo goes to a sleepover thinking her stepbrother, Jeffrey Pelley, is at his senior prom; she spends the next 13 years believing someone else killed her family members, only to discover she knew the killer all along.

Vickie Webb's son is accused of absolute evil, and she isn't surprised.

Wilda Gadd dismissed rumors she heard about Howard Willis when she married him, but it wasn't until she found herself wearing a wire and risking her life that she finally realized the truth.

Terra Newell her mother, Debra, discover evil tendencies in Debra's new man, John Meehan, but Terra never imagined she would ultimately be forced to kill him.

Christina Hildreth unwittingly helped Shawn Grate clean up his first crime scene, she didn't realize what she was doing.

Teri Knight spent weeks driving cross-country, desperately searching for the secret her ex-husband, Manuel Gehring, took to his grave; it took years before a stranger finally solved the mystery.

Teenager Sarah Garone is targeted by an anonymous predator for nearly a decade; each time, Sarah turns to her stepfather, Gary Hardy, for protection, not realizing he is the one determined to hurt her.

When Sonja Holt's fiancé, Stafford Shaw, starts staying out late, she initially believes his excuses; she never imagines just how far he'll go to safeguard his secrets or the terrible price that will have to be paid when they come to light.

Claire Throssell interprets Darren Sykes' overwhelming displays of affection as signs of true love; she doesn't realize that Darren's grand gestures are his way of luring her into a false sense of security so he can control her.

Questions persist surrounding Cameron Todd Willingham's conviction and death sentence, but according to Stacy Kuykendall, who knew him better than anyone, Cameron is a monster who was guilty as charged and deserved to die.

Jon Eason hopes every day that someone will murder his son Dylan in prison; Dylan Eason's life sentence without parole doesn't appease his father, who admits wishing for his own son's death is horrible but feels Dylan deserves it for his 2016 crimes.

Christian Fuhr receives a life sentence, and his girlfriend, Ammie Turos, believes he is innocent; when she discovers he's guilty, her conviction is replaced by uncertainty, and she wonders if her life had been in danger the entire time.

People recount their horrifying true stories about living side-by-side with sociopathic friends or family who go on to commit heinous crimes.

When police arrest Melvin Ignatow for murder, his son Mike is sure he is innocent and that his dad's girlfriend is to blame instead; Mel is acquitted but later confesses, and Mike must face the fact that his father has gotten away with murder.

A woman believes that her sister blames her for the crimes she committed.

As a child, Daniel Rolle idolizes his father, Donald, until Donald's rage makes everyone suffer; when that eventually leads to murder, Daniel must decide if he still loves his father enough to beg a jury not to kill him.

Cathy Mills is only a teenager when her fairy-tale marriage to Robert Walden turns into a nightmare; still, it is not until she sees a police sketch of her husband that she realizes his true identity.

Seven-year-old Deborah Brashers' father, Robert, kills himself in a hotel room, and for 20 years, she struggles to understand why; neither she nor the police had any idea he'd been living a secret double life as a serial killer.

Alice Jenkins locks Jesse Eging in a closet; Jesse realizes that if he and his siblings do not find a way to escape, they will surely die.

When Amy Chesler calls 911 to report what her brother, Jesse Winnick, has confessed to, she doesn't know whether to believe him; Jesse's always been a liar, and Amy doesn't understand what he is capable of until she walks in and sees it for herself.

From the moment Deborah Williamson meets her stepson, David Shafer, she feels something unsettling about him; when her warnings about his frightening behavior go unheeded, the devastation he ultimately wreaks goes beyond her imagination.

When the police tell Chris Matechen his girlfriend, Alyssa Dayvault, has confessed, he doesn't want to believe it because it means admitting that he fell for her lies and spent years being blind to the horrific things she did right under his nose.

Jennifer Winter accepts Cristobal Palacio's marriage proposal out of necessity; she believes that he understands that it is a marriage of convenience, not love; he makes her his prisoner, and she realizes escape will come at a terrible cost.