Season 21 - Episode Guide

When a beloved Wisconsin father disappears, his wife blames drugs, but close friends suspect a violent confrontation that ended a marriage filled with secrets.

A churchgoing southern woman loses her husband to tragedy, but a cloud of suspicion haunts her new marriage and leads investigators to a new conclusion.

A violent home invasion leads to suspicion about the victim's stepdaughter and a mystery man, but a startling confession reveals a more intimate betrayal.

The life and crimes of master manipulator, and monster, Drew Peterson.

A popular cab-driver is shot dead, but the search for his killer reveals a possible conspiracy.

Insiders give personal accounts of the six day period between Tupac's shooting and his tragic death.

The murder of a well-liked widower leaves police wondering what secrets his marriage to his new, much younger wife might be hiding.

An Air Force sergeant is gunned down in his garage, revealing an elaborate conspiracy.

Police must unravel a mystery involving an Arizona couple, cross-country romance and a deadly plan.

A murder investigation turns into a case populated by demons, masks and a potential psychopath.

On Halloween night a knife-wielding intruder attacks and kills two roommates.

The sweet grandmother passing out candy is also hiding a deadly secret in her garage.

A massive Halloween bash ends with a young woman's mysterious disappearance.

Helen's boyfriend goes missing just as authorities find a dismembered torso.

The death of a police officer leads to a search for her killer.