The criminal genius Fantomas, the man with a thousand faces, has angered himself on a fake interview written by journalist Fandor. Fantomas kidnap Fandor and threatens to kill him, but only after having staged a crime where Fandor seems criminal. Heels are however Inspector Juve, so Fantomas commit another crime, this time disguised as Juve. Fandor and his girlfriend, Hélène, is merging with Juve to outwit Fantomas. But who controls whom?