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.

A frantic graduate student calls 911 to say she just shot her boyfriend in self-defense. Police soon discover that her story doesn't add up and realize they are face-to-face with a remorseless, calculating psychopath.

After a couple's murder, police find a fantasy killing by two psychopaths.

A husband becomes the prime suspect when his wife goes missing as police discovers his checkered past; lacking a body or evidence of foul play, detectives hope to gain a confession from a man they realize might be a cold-blooded psychopath.

A young girl disappears, and detectives find a psychopath who duped her.

An impulsive psychopath randomly kills a successful female executive.

On a quiet winter night, a mother finds her 22-year-old son horrifically dismembered in her basement. The lone suspect is the victim's ex-girlfriend, who is at her home in an emotionless state with blood on her hands.

A charming 20-year-old wants to help authorities with a murder investigation. He claims to have met one of the three victims and says he has no knowledge of the crime, but detectives suspect otherwise. Could this intellectual be hiding a dark side?

A missing Colorado woman's roommate claims she'll do anything to help find her, but investigators fear they may have a rare female psychopath on their hands. Later, a killer's angry outbursts could be real, or just an act put on by a manipulator.

After a house fire in Texas, suspicion lands on John Hummel when his family's brutally murdered bodies are discovered in the ashes, and he doesn't blink an eye. Now an inmate on death row, he grants a final interview weeks before his execution.

An obsession with a web-cam model leads to the annihilation of a family.

A prolific serial killer brags on tape about strangling eight young women.

A college student disappears at the start of his freshman year without a trace, leaving his family and his girlfriend reeling; when authorities look to his best friend for answers, they uncover a love triangle gone wrong.

After coming home to find her parents on the floor bleeding, a woman's younger brother claims their father shot their mother before turning the gun on himself.

While being questioned in the abduction of an Anchorage barista, a young local businessman starts negotiating with investigators to reveal details of a depraved secret life as one of America's most meticulous and psychopathic serial killers.

A heartless gunman shoots a young couple with devastating consequences.

A home invasion leads to the revelation of a shocking double life.

The naked and mutilated body of a mother turns up at the bottom of a ravine in Baton Rouge, Louisiana. When tire tracks lead investigators to a suspect, they encounter an undetected serial killer who confesses to butchering eight women over a decade.

Police respond to a 911 call to find a father of two dead in his home with more than 15 gunshot wounds. Police question the family, but one person is missing, his mother-in-law. Now detectives must determine if this grandma could be a deadly psychopath.

When a graduate student suddenly goes missing, the family he's staying with immediately contacts police. Then, just days later, a horrific discovery forces investigators to face a rare kind of monster.

An officer responds to a 911 call placed by a robber on the lam who feels compelled to turn himself in. However, when the officer arrives at the scene, the criminal confesses to much more than breaking and entering.

A man crashes into the back of a woman's vehicle early one morning. Officers respond to the scene only to find her car abandoned. Witnesses point to the other driver, and detectives are horrified to discover a sadistic psychopath who admits to murder.

The "Tourniquet Killer" terrorizes young girls across Houston, Texas. When advances in DNA finally lead to his arrest, this psychopath eagerly confesses to multiple murders.

First responders arrive at a home in Ontario where a mother leads officers to the bodies of her two children. An investigation yields the truth: this awful tragedy isn't an accident but a carefully crafted killing by a vengeful psychopath.

A failed actor take out his rage on the weakest members of society; after killing four people, a chance encounter with police leads to his downfall; the interrogation room becomes the stage for this killer's final performance.