Master criminal Fantomas kills an ambassador, has an affair with the dead man's wife, sneaks into a rich woman's house handing out vanishing-ink business cards, is arrested and sentenced to death but switches with an actor, who goes to the guillotine.
Helmut Berger
Fantomas
Jacques Dufilho
Inspektor Juve
Pierre Malet
Fandor
Gayle Hunnicutt
Lady Beltham
Dominique Zardi
Train porter