This French musical comedy was based on the stage play Mademoiselle Mozart, written by Yvan Noe, who also directed and produced the screen version. Danielle Darrieux plays Denise, the owner of a music shop that is facing closure. Wealthy young Maxime (Pierre Mingand) falls in love with Denise but knows full well that she despises rich folks and would refuse to accept his charity. Thus, Maxime arranges to secretly buy the store then takes a job with the establishment as a humble sheet-music salesman. When Denise finds out that her new employee is actually her boss, she is furious, but rest assured that Love Will Find a Way. The lovely Danielle Darrieux is permitted to sing on several occasions, which she does enthusiastically if not altogether expertly.
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.
In a small provincial town, the new colonel of the dragoon regiment consigns all his men. Three soldiers defy orders and jump the wall. But the colonel becomes indulgent thanks to the intervention of the general who did not remain insensitive to the charm of a young American.
A widower sends his son Dédé to boarding school, falls in love with a young woman and gradually neglects the child, not out of disaffection but because of routine. The little boy is helpless: he feels he has been completely forsaken - Fortunately, things improve: Dédé ends up finding a new mummy.
Soon after the death of his first wife (whose dowry was inadequate), Charles Bovary, a country doctor in Normandy, marries Emma Rouault. In her new home, Emma finds conflict with her mother-in-law, a husband uninterested in the social whirl, and general discontentment; thereby proving an easy conquest for philanderer Rodolphe. Other lovers follow. Does tragedy await?