A woman's marriage to a violent man leaves her afraid to be alone with him, but she doesn't believe the police have the right man when he's arrested for a ghastly crime.

When 17-year-old Bernadette's boyfriend, Brian Sugrim, told her he had murdered someone, she didn't believe him until years later.

Kevin Currie is a devout follower of spiritual leader Jeffrey Lundgren, then he comes to realize Lundgren is really a devil in disguise who has hatched an evil plan.

Cathy thought she had found the man of her dreams in Peter Tobin; but by the time she uncovers his dark secret, it was too late.

Danyall White tells the gripping true story of her brother Richard. Danyall always thought he was a prankster who told stories. But when his stories started getting more and more violent, she slowly realized that her brother was hiding a monstrous secret.

Though Ronald Hawkins and Candace Sims knew that their son Robbie was different from an early age, they were unprepared for the violent act that Robbie would commit, a crime that shook the nation. Now they talk about it all on camera.