In the second installment of the parodic
Fantomas series, the title arch criminal and master of disguise kidnaps prominent scientist Prof. Marchand in order to develop a new powerful weapon to threaten the world. Fantomas is also planning to kidnap another scientist, Prof. Lefebvre. Journalist Fandor (
Jean Marais, who also plays Fantomas and Prof. Lefebvre) decides to set a trap for the elusive villain. He disguises himself as Lefebvre and attends a scientific conference in Rome expecting Fantomas to kidnap him. As always, Fandor's ingenious plan backfires due to the interference of the bumbling police commissioner Juve (
Louis de Funès). ~ Yuri German, All Movie Guide