The rise of a canning maker and then his abandonment of the factory because his ideal of social progress for his workers is undermined by the Board of Directors.

Lina Bourget, a realist singer, is forced to leave Dakar because of a murder she believes she has committed. Taking refuge in Paris, she unexpectedly becomes a star in the capital.

For some time, the police have been on the trail of a mysterious burglar who has evaded capture whilst executing one daring robbery after another. No one has any clue as to the identity of this elusive criminal and he has come to be known as Monsieur Personne.

A young Breton sailor falls in love with a visiting stranger called 'La Glu'. He drops his betrothed, mother and friends so that he can live with her. La Glu is murdered. Who did it? Relatives and friends are all suspects.

Jules Vachon, a pharmacist, has two sons, Gabriel, a steady-minded young man dedicated to his job in the pharmacy, and Gaston, a good for nothing whose only talent is to seduce rich women and take money from their pockets. But it is Gaston who is hailed as a great man when he returns to his native village thanks to his deep pockets.

Georges Gauthier is an electrician who lives with his mother and his sister Madeleine. He is the son of a womanizing singer who made his mother miserable. For all that, Georges is attracted to show business all the more as he falls in love with Jeanne, the daughter of singer Lormel. Georges is spotted by Cartier, the manager of the Folies Concert and makes his debut as a singer under the assumed name of Jean Papillon.

Following the assassination of a financier, several people who had an interest in seeing him disappear are suspected.

The story is about a drug ring and the finally successful efforts of the Paris police to break it up. A young detective goes into a den in Paris' Chinatown, following a clue, and that is the last seen of him until his body is found floating in the Seine several days later. The only clue is a woman's glove. The dead man's friends on the force vow to avenge him, and receive information leading them to suspect one Sandra, a beautiful foreigner, played by the stunning Marcelle Chantal.

Mortal is ready to do anything to obtain a divorce from his wife Nadia. To compromise her, he needs to find her a lover. He thinks he has found the ideal candidate in the person of a manly private detective by the name of Robert Arnaud. But the experience gets out of Mortal's control as, on the one hand, Robert and Nadia fall in love for good, and, on the other hand, Robert, assisted by resourceful young Toto, manages to expose Mortal as the jewel thief he is.