Season 1

Phillip Fraser's daughter talks about the murderer, who killed his ex-wife in 1997, before stabbing another former partner to death while out on license.

The sister-in-law and brother of Surjit Athwal talk about her murder in a so-called 'honour killing', discussing what went wrong and how two families were torn apart.

Levi Bellfield's ex-partner reveals what life was like with the serial killer. Bellfield killed Milly Dowler in 2002, and was also responsible for at least three more deaths.

Ian Huntley's ex-girlfriend and daughter tell their side of the story. The pair explain how Huntley abused them for years, before they eventually ended all contact with him.

Richard Ramirez's niece, who grew up not knowing about her uncle's terrible crimes, tells her story. She explains how her parents stood by Ramirez, costing them their marriage.

The relatives of murderers tell their stories, beginning with Fred West, whose brother Doug and niece Sam reveal how his crimes affected the family.