Everyone in Paris thinks Fantomas is dead. A wave of extortion, blackmail and murder all point to the master criminal. Inspector Juve and his reporter friend Fandor set out to find the truth.

In Paris, three models are murdered, being one of them the mistress of the fashion designer Dominique Airelle. It is the young inspector who is in charge of the affair.

The love of a singer and his mistress suffers a setback.

Robert Montfort, happily married to Solange, is his parents-in-law's pet aversion though. To them he is a punk, a good for nothing, a small-time, untalented poet! Robert, who is more gifted than what they think, manages, following a workmate's recommendation, to debut as an entertainer in a nightclub and -even better- to please the audience. Not daring tell the truth to Solange he starts leading a double life, being Robert Montfort in the daytime and Jean Rigobert at night. Of course his wife wonders what is going on and worries about his regular night outings. Only too happy, her parents incite her to have a divorce. Fortunately, all comes right in the end.

A famous comedian decrees that his fortune will go to whoever collects as many pop star autographs as quickly as possible. When he dies, two cousins ​​embark on the race for signatures.

A group of Italian soccer fans arrive in Paris for a match, but most of them go their separate ways to explore the sights, have a bit of an adventure, and maybe even find some romance.