A team of police officers are tracking down a criminal nicknamed “The Faceless Man,” who wants to steal the Templars' treasure with the help of a mad scientist and an accomplice called “The Woman.” L'Homme sans visage (shot in 16mm) is a series consisting of eight 56 minute episodes broadcast on television a year after Nuits rouges (shot in 35mm), whose story they expand, although Franju shot the film and series at the same time.