Fred Dinenage investigates 1940s murderer John George Haigh, who notoriously dissolved his victims' bodies in acid.

The presenter explores the crimes of Graham Frederick Young who, after serving 15 years for poisoning his parents, laced an entire factory's tea with deadly thallium.

Fred Dinenage examines the crimes of Brides in the Bath murderer and bigamist George Joseph Smith, who drowned his three wives between 1912 and 1914.

Fred Dinenage explores the life of multiple murderer and armed robber Donald Neilson, who killed 17-year-old heiress Lesley Whittle in 1975.

The case of Harold Jones, found guilty of murder at the age of 15 in 1921, who is also suspected to have been 1960s serial killer `Jack the Stripper'.

The case of Derek Bentley, who was hanged for the murder of a policeman during a burglary in Wandsworth, south London, in 1952, even though it was his 16-year-old accomplice Christopher Craig who pulled the trigger.

Presenter Fred Dinenage reflects on the story of Ruth Ellis, who was found guilty of the murder of her estranged lover. She was hanged for the offence in 1955, the last woman to suffer such a fate in the United Kingdom.

Author Fred Dinenage, who conducted a series of interviews with the Kray twins for their autobiography, recounts the time he spent with them and presents their true story.