S9.E4 ∙ Britain's Worst Female Serial Killer

With all the picturesque glamour of the 1940s, "The Pardon" recounts the unlikely true story of Toni Jo Henry. A grisly murder leads to a series of sensational trials in which she pleads her innocence; she was executed in Louisiana, 1942.

In the world of the drugs business - where it's is all about money - friendship and loyalty is most important. That is what becomes the demise of gangster Klaas Bruinsma.

The story of three women - a famous prostitute, her housekeeper and their new maid - living in Budapest of 1910s, whose passionate, bizarre and complex relationship can only lead to one thing: murder.

The true story of the disappearance of Sarah Porter. With no help from the police, Sarah's parents are forced to act on their own to find her. They must battle the bureaucracy of the police department while they are searching all over town for clues to Sarah's whereabouts. When the crucial clue is discovered, Shara's father confronts her kidnapper at gunpoint.

Kenneth Bianchi, one of the two serial rapists and killers who terrorized the Los Angeles area in the late 1970s, is giving police station interviews to psychiatrist Samantha Stone, who is forced to relive the horrific crimes.

A story based on Johann Rettenberger, an Austrian marathon runner and a bank robber.