Daniel Gelin and Juliette Faber star as a blissfully happy honeymooning couple. They are so happy that they arouse the jealous attentions of Satan. The Dark Prince sends an emissary to beak up the romance, but his advocate is promptly challenged by a representative from "up above."

Father Benoît would like one of his twins to take over his inn, at 3 plates. But his ancillary ambitions are not commensurate with his last 3. Bernard is also in love with Hélène, daughter of Colonel Flouc de La Donzelle. He dreams of becoming an actor and goes to Paris to find a job. Difficult beginnings since from the theater, he goes to the cabaret, then to the radio, without success. In the final scene, the 3 brothers meet, which gives rise to a series of gags during the wedding.

Olivier Cabrol is an immature young reveler who lives from hand to mouth. One day he inherits a fabulous fortune from an eccentric uncle. But on the one condition to spend a certain amount of time as a tramp. Olivier accepts out of sheer greed but soon finds the experience rewarding. He finds himself as well as new friends (true ones this time) and even love in the person of Colette.

The Count De Rochambeau wants to marry Mireille but she likes Etienne. The sister of Etienne, nicknamed "the girl with buttons" schemed with a friend to pose as a Russian princess to seduce the count and allow the marriage of his brother with Mireille.

An uncle in America wants to endow his nieces with a dowry, provided they succeed in making a name for themselves one night at the Moulin Rouge, where one of them is already performing. Everyone's pulling out all the stops to help the girls put on an act, dupe the theater manager and win the dowry - which will be doubled if they manage to marry, as their uncle is marrying the star of the show.