In a school for chansonniers, each student goes to the board where he says and mimes his sketch.

A rich businessman living alone is deprived of the nephew he was to have brought up decides on his doctor's advice to search for the four illegitimate children he once fathered, which leads him to accept responsibility for his actions.

Martine is a lonely girl in an exclusive boarding school who conjures up a glamorous existence in order to make her dull life tolerable and to impress the other girls. One of her flights of fancy is a love affair with Brevannes, a famous composer. She leaves the school and goes to the French Alps to find the life she's only dreamed about, where she meets Brevannes and a December-May romance develops until she meets a young mountain guide, Henri Vidal.

Augustin, the bashful but model secretary of Fontange,a tyrannical industrialist, is desperately in love with Christiane,his boss's daughter. Of course Daddy will never allow. On the contrary he wants to force his daughter to marry his business partner, a single man, whose money would be a welcome help. To escape such an unfortunate lot, Christiane must find a subterfuge. The solution is Bichon, the baby that Jacques, her younger brother, is supposed to have had from a certain Loulou. By claiming that the baby is hers and that Augustin is the father, she hopes to compel her father not to marry a man she does not love.

Darrac, a reporter for Paris-Inter, and Nicole, a journalist for Le Soir-Express, know each other, compete and end up falling in love over the three police investigations they follow for their newspapers.

To receive the inheritance of his uncle, who died in Brazil, Claude, who has no money, must absolutely marry one of his three cousins.

A father wants to try by all means to avenge the death of his son, a test pilot, whose responsible is the attractive female star of a Parisian cabaret.

In the Basque Country, two friends, José and François, live a cheerful life. The two sly foxes use their wit to boost the business of an innkeeper they have a connection with. José is in love with Angélica, the innkeeper"s daughter, while François courts petite Annette. José also happens to have a beautiful voice and one day a night club manager hears him and wants to hire him. He will have to choose between Angelica, the inn, his roots... and a singing career in Paris.

For fun and to dazzle his wife, the novelist Morgan steals a ring and gets rid of it in the costume jewelry section of a supermarket. Sophie buys the diamond, which forces the novelist to embark on crazy adventures to recover the jewel.

Hector Dumontier has had enough of his wife Noémie : she is always immersed in those detective stories he disapproves of. To teach her a lesson, Dumontier decides to simulate the burglary of their house, with the help of an alleged jewel thief masked by a hood. He creates many false leads and everybody in the house gets suspected, from Ernestine, the maid, to Cabassol, the chauffeur, to Rosine, the Dumontiers'daughter. The disorder is complete and the various police detectives in charge do not help much.