The ex-girlfriend of the self-proclaimed Crossbow Cannibal reveals the mental and physical abuse she endured for years at the hands of one of the U.K.'s most heinous serial killers.

Houston police search for a serial killer preying on young women until a local man's DNA finally reveals the culprit; upon his arrest, the killer's sister and daughter learn his true identity.

Spree killer Joanne Dennehy stabbed three men to death in 2013. Now, for the first time, Dennehy’s daughter Shianne shares how she has struggled to come to terms with the realities of being the child of Britain’s most dangerous woman.

A Canadian nurse walks into a rehabilitation centre and confesses to murdering several of her patients. Her childhood best friend reveals their lifelong common bond and the terrifying confession she made to him.

After getting away with murder for over three decades, one of the FBI's most wanted shocks investigators when he readily admits to five murders; his son discloses a family life on the run and his attempts to step out of an evil father's shadow.

For 10 days in 2006, an unidentified killer terrified the rural town of Ipswich snatching five prostitutes from the streets and strangling them to death. When Pam Wright discovers that the killer was her own partner, her world begins to crumble.