In the kingdom of animals, Master Fox is used to trick and fool everyone. So the King, the Lion, receives more and more complaints about him. He orders that Master Fox is arrested and brought to him.

A woman is accused of the murder of her husband, who was jealous and brutal. Her lawyer manages to get her acquitted and they get married in the end.

Noël Bienvenu, owner of a career, is a widower and lives with his parents. His son Bastien, whom he despises, was sentenced to six months in prison for theft. Noël goes to see a dying friend, Romieux, who asks him to take care of his daughter Marthe, who has settled in Paris (Batignolles district). Noël goes there and discovers that Marthe is destitute (her lover Gaston being an incarcerated mobster): he then offers her to come and live with him and soon, marries her.

Cecile, a young girl who goes to the offices of the Judicial Police several times in a row to complain about nightly visits to the apartment she occupies with her aunt, is not taken seriously by the police until she the day she is found murdered.

In a film studio, several actors are the victims of attempted murders. Julien Brisseau, a writer, decides to use these facts as the backbone of his new novel. But while he is working on his detective story, young actors are actually killed. Julien thence gets suspected by police inspector Vétillard. To clear his name, Julien undertakes to investigate and find the killer on his own.

In an aero-naval base, a marine engineer who was about to deliver the name of a redoubtable spy is murdered. Shortly afterwards three different men appear on the crime scene, each of them claiming to be Monsieur Sylvain, the expected sleuth. But which of the three investigators is actually Sylvain? And what about this delightful young lady who arouses one of the police inspectors? Couldn't she be the murderous spy?

Fleeing Paris where he killed, Olivier takes refuge in the Giraud farm and falls in love with his daughter, to the chagrin of her suitor, a man named Joseph. When the latter is found dead, Olivier is accused and the young woman will arrive too late to clear him, the poor man having fallen into a ravine while trying to flee.

At sea, sailors have got to make do with what they have. François is in love with.... the figurehead, the bust of a gorgeous woman.

Laurangeais stays in a nursing home after his wife dies following an accident caused by Terrian, his adopted son. When he leaves he finds Terrian who is going to get married. He drags his future wife into a cabin and kills her.

The City of Hope is the place where left-behind artists subsist by scraping by. When one of them is accused of murder, all try to find the real culprit.