Episode 1
A mother who calls 911 to report her 32-year-old son is threatening her turns up dead in her home; he becomes the only suspect, and when he turns himself in, his pragmatic retelling of the slaying isn't just cold hearted, it's psychopathic.
Episode 2
A crash on a North Dakota highway leaves one passenger dead but the driver unscathed; when investigators see that the victim has stab wounds, they know there was foul play; detectives interrogate the driver.
Episode 3
Searchers for a missing woman find her brutally beaten body in a dilapidated house near her home. The case goes cold until a local teen steps forward to reveal that he's not only the killer but also a manipulative psychopath with a thirst for violence.
Episode 4
After his conviction for the brutal slaying of his wife, a Florida inmate lays claim to another unsolved murder 17 years prior, revealing that he's a manipulative psychopath with a history of violence and an unquenchable thirst for revenge.
Episode 5
A man confesses to accidentally killing his best friend while cleaning his gun; during his interrogation, he stuns police by revealing that he’s behind a long trail of bloodshed and is a serial killer who seems to consider himself an angel of mercy.
Episode 6
A man finds his girlfriend and her mother murdered in their beds at night; he calls 911 for help, but police discover his urge to seek revenge.
Episode 7
Behind a church lies a dismembered body burned beyond recognition; investigators identify the victim and receive a tip the suspect is a female; a police interview reveals her as the most remorseless psychopathic killer they’ve ever seen.
Episode 8
When a beloved elderly couple disappears on a Sunday afternoon, one person knows their battered lie dead at the bottom of a well; that man is the couple’s son, who lives off his parent’s charity yet takes pleasure in murdering them.
Episode 9
When Omaha, Neb., police officers arrest the driver of a stolen van, he shocks detectives by giving an unsolicited confession to a gruesome murder, and it is only the first of many chilling revelations.
Episode 10
When a priest from Florida goes missing, police focus on a troubled ex-convict whom he helped support; through multiple interrogations, a psychopathic killer reveals details of a twisted vengeance that escalates to a chilling murder.
Episode 11
Traits of psychopath lurk in us all, but for whom does it lead to murder?
