Willy Ferrière is a gambler living beyond his means, and his mistress is as greedy as he's dead broke. One day, he says out of loud in a a Montparnasse café that he would give 100,000 francs to get rid of his wealthy aunt so he could claim his inheritance. Someone secretly lets Willy know it's a deal. The old lady is murdered, and a low-life criminal is manipulated to be the perfect suspect. But Superintendant Maigret feels something is wrong.

Cochu, a simple soldier, is mistakenly believed to be a rich heir which causes many problems.

Suzette and Jack form a very nice and rather well-matched couple. The latter is the partner of the new clown Teddy who seems to please the young lady a lot.

Prince Philippe of Bracowa must join his fiancée by train. The young and pretty Gisèle is on the same train, for her too to join her fiancé.

Jacques de Nisson, a rich man, has a new mistress, Lucie Cavelier. Which does not prevent him from courting Florence, the wife of his lawyer friend Forestier. One day, Jacques is found murdered and chief-inspector Candély is sent on the spot to investigate. Jean, the victim's butler, Lucie as well as Florence are suspected in turns but the real murderer is finally identified thanks to his fingerprints.

The crazy adventures of a character forced by circumstances to take on such dangerous professions as those of gangster, burglar, Chinese chiropodist and amateur detective.

For still being a bachelor at an "advanced" age, César is the laughing stock of the neighborhood. Determined to change things, César goes in search of hearts to take.

Madame Dupin is the most influential character in her village. She is at odds with her daughter because the latter married a showman.

Abandoned kids are taken in by a rather sleazy character who owns a shoe store and practices wear. The children grow up, the man dies and leaves them his fortune The heirs who only got the store, watch over them, which forces them to lead a double life.

Camille Morestan serves as a jury member at a court in Paris. The attractive Natalie Roguin is accused of murder. Morestan doesn't want to believe she really killed her lover. He succeeds in convincing the other jury members she was innocent. After her acquittal he takes her into his house. While he tries to keep her identity a secret for his family her presence leads to a number of unfortunate incidents.