A small industrialist from Toulouse, goes to Paris to negotiate the buyout of his company from an American financial group. During his stay, the representative of the large firm calls on a luxury call girl to facilitate their "business".
Philippe and Sylvie bring home a small container they found on the way from school and strange things start happen...
In this film, Albert is an eccentric inventor of missiles who comes under fire from his investors when his first prototype explodes. Even his sympathetic mistress has her doubts, as Albert lashes out in a verbal tirade condemning those of little faith in his genius.
In Paris, the young photographer Ferdinand falls in love with Claire, a pickpocket. Shortly after, he is assaulted because he took pictures of the young woman with another man, Brady, his sponsor. The policeman Lorenzi is put on the case, but in love, Ferdinand does not want to denounce her. However, a stolen object that she offered him will allow his indictment: Claire will spend a year in prison. When she is released, Ferdinand marries her. Kerman, Ferdinand's new boss, employs Claire in his cabaret. She puts on a famous act during which she picks the pockets of the spectators, then gives the objects back at the end of the show. But Brady reappears, demanding 80% of the young woman's earnings, otherwise he will denounce Claire's bigamy, to whom he is still married! Ferdinand prepares to flee with his wife. When he finds her, he comes across the corpse of Brady, whom Claire has just killed.
This talkative and unevenly paced feature finds Fou (Jean Lefebvre) the inventor of a gas that makes the users fall in love. He is chased by his boss, the police, and spies, who seek to secure the secret recipe for their own selfish purposes. A shadowy American underworld figure tries to intimidate the inventor. A half-hearted attempt at comedy tries to go along with the double dealing and trickery of the thin plot of the film.
A few stories about marriage and its problems. Antoine is about to marry Gisèle. His friend Julien, an established bachelor, desperately tries to convince him not to do it, recounting his own painful experiences.
Police officer Antoine Delille is in charge of putting an end to the activities of a "kingpin", Jo Pinelli, trafficker, racketeer and pimp. He has three women working for him, including Eva and Jeannette, and is currently "conditioning" a charming, naive Orly employee, with whom he poses as an honorable businessman. Inspector Delille's plan is to arrest Jo for some crime and, while he's being held at the P.J., to delve into his other criminal activities and confound him.
Jeff Gordon, FBI agent, infiltrates a gang and finds himself in the midst of a gang war.
The lucky Baron wins a boat in a card game and takes off with his former lover to find new adventures. Adverse circumstances land them in a small town, where the Baron's seafaring companion leaves for more attractive scenery offered by a wealthy local man. Meanwhile, there is a certain charming cafe owner that the Baron finds irresistible -- at least for awhile.
Police Commissioner Jules Maigret returns to the small village where he spent his childhood at the request of the Countess of Saint-Fiacre, who has received a disturbing anonymous letter.