From 1987 to 2003, Michel Fourniret cemented his legacy as France’s most infamous murderer. But his wife was an enigma: Was she a pawn or a participant?

The Cannibal that Walked Free (also known as Cannibal Superstar ) is a British documentary produced by Visual Voodoo for Channel Five which explores - through direct access - the bizarre psychology and twisted celebrity fame that surrounds Japanese cannibal Issei Sagawa.