Robert and Françoise Monier make a hot air balloon to fly to the stratosphere. After a visit to Venus, they return home, but have only aged 15 days whereas 25 years have passed on Earth.

A young woman has doubts about her husband's fidelity. She pretends a trip, but settles in a hotel where her husband must pass. He meets her and, disturbed by the one he believes to be his wife's double, becomes her lover. Little by little the truth breaks through. The husband takes leave of the mistress and returns to the wife whose return has been announced.

Claude, who temporarily replaces his father at the head of a department store, falls in love at first sight with a pretty female customer. He finds out that she is named Solange and that she is the goddaughter of Professor Hauteclerc, who runs a private psychiatric hospital. To come closer to the girl of his dreams, Claude has a crazy idea: he pretends to be mad so as to be placed in Hauteclerc's institution.

Blondine, the daughter of a poor fisherman, marries the Prince of the Mountain. Brune, her sister, envies Blondine her happiness and tells her that a secret lies hidden in her husband's name. Blondine tries to discover it but, before she does, the Prince is imprisoned by an ogre. Blondine must face goblins, imps, and the water djinni before she can deliver her captive Prince.

Rosine, who spends her time as a model, has to deal with the advances of a disreputable young man.

A banker who lost everything in the stock market is on the verge of committing suicide when the Devil appears to him and offers to give him a fortune every day on one condition: he must do evil things with the money! Will the banker keep his end of the deal...

As her neighbor Rémi Courmont has told her off for making his ears bleed with Ravel's Bolero, a music piece she plays at full volume all the time, Anne-Marie decides to get even with him. She sets up a hoax with the complicity of her friend Catherine, who agrees to post as Remi's mistress to embarrass him. Just then, Niquette, Rémi's real lover, resurfaces.

Some, like Ravier de l'Orne are born... masters, but ,like him, do not live up to their rank. Others, like Gustave Morillon, are... born masters, even if, like him, they are valets. Morillon will indeed prove better at bridge than his master and will eventually win the affection of Antonia, a lively foreigner Ravier also coveted.