In a small hotel on an English beach, an agent from the Intelligence Service is responsible for finding an important stolen document. At night, a theft of jewelry, including a superb emerald, complicates the investigation. The search for the double culprit proves to be difficult.

Marguerite and Verdurin, both employed in l'Atout Prix, a store run by Prosper Biscoton, would like to take a vacation at the beach, but they need more money than they earn. They decide to trick their boss into paying for the trip by pretending Marguerite is interested in him. Biscoton falls in the trap and puts himself in a difficult position with his own wife.

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.

A rich, idle young man falls in love with a cabaret singer. Very skilful, she pretends to remain insensitive to this love, thus hoping to better achieve her ambitious ends.

The merry Vigoulette wants to escape the yoke of his wife and asks to be recalled to a barracks regiment in Nice. Every night, he and his friend Poupardin have a great time. But one evening, he is missing. Fortunately his wife, who had arrived to spy on him, takes her place in the bedroom.

During a leave, three merry soldiers experience a series of incredible adventures.

Mr. Gustave Bourdillon loves hopelessly the wife of the director of the institution where he is the only teacher. Soon a widow, the pretty wife of Mr. Calumet, agrees to marry the brave professor, but believes each onstant that her husband has returned in the form of his brave little dog Medor. After incredible situations and an immeasurable pursuit, Gustave Bourdillon and widow Émilie will live a deserved happiness.

A respected gangster, Justin, finds himself in a deadly feud with his rival, the unscrupulous Esposito. The latter plans to steal a cargo of opium bound for China and to have Justin killed.