Peter Tobin raped and murdered Angelika Kluk in 2006, and with the help of his ex-wife, Cathy Wilson, a groundbreaking investigation unearthed more victims and revealed him to be a serial killer.

For decades, 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 as the Tourniquet Killer.

From 2009-10, the self-proclaimed Crossbow Cannibal terrorizes the community of Bradford in Northern England. His ex-girlfriend reveals the mental and physical abuse she endured for years at the hands of one of the UK’s most heinous serial killers.