Spree killer Joanne 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.

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.

Pam Wright discovers in 2006 that the unidentified killer who snatched five prostitutes from the streets of Ipswich and strangled them is her own partner.

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.

When a church-going family man’s second wife is found dead in their hot tub, police look back at the suspicious drowning death of his first wife. After years of believing in his father, his youngest son finally learns the horrifying murderous truth.