Fadinard is going through the woods on his horse en route to his wedding. Unfortunately, his horse eats the straw hat of a married woman who is having a secret rendezvous with her lover. In order to save the woman's honor, Fadinard must find the exact same type of hat to replace the one his horse ate and still be able to get to his wedding on time.

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.

An outgoing deputy, put on ballot, experiences many political and marital difficulties before regaining his seat. Ultimately and without suspecting it, he owes his victory obtained by a withdrawal at the last minute, to his young wife who did not hesitate to seduce the opponent.

Mr. Pontbichot has long dreamed of cheating on his wife. To achieve his goals, he looks for a son-in-law who could help him, and finds him in the person of a young painter, who pleases his daughter.

Georges Legrand is a young unscrupulous reveler. He seduces Fred, a woman doctor before shamelessly dumping her for Aline Ribourg, a tennis player. Soon fed up with his new conquest, he returns to Fred. But Aline is pregnant from him. Showing an admirable sense of self-sacrifice, Fred manages to persuade Georges to marry Aline.

Following a broadcast on the radio, each of the listeners remembers these "little nothings" (the title is borrowed from a play by Mozart), which have often changed their lives. Each of these stories told will prove that a tiny detail in life can change an entire destiny.

Middle-aged Georges of the "old school" who offers shelter and comfort to Marcelle. Despite his own reservations, Georges falls in love with the much-younger girl, remaining faithful to her even after he realizes that she cares only for his money.

A public prosecutor wants his son to marry an ugly girl(who has a squint) because her mom is very rich.But it's too late for the boy has already fallen in love with another girl who is pregnant by him.Angry dad is to stop his shameless son's allowance .Enter exuberant Betty Brown ,with a delightful slight English accent and lots of joy of life .The old man realizes then that life is passing him by .Is it too late for him to find happiness?

Bienaimé, a modest postman, in love with Janine, the village postmistress, does not know that he is the illegitimate son of the old Baron de Mondésir. The Baron dies and in happy amazement, Bienaimé finds he is the sole heir to the deceased's estate. But he should be careful, for two crooks, Waldemar and Erika, are after his newly-acquired wealth.

Fadinard is going through the woods on his horse en route to his wedding. Unfortunately, his horse eats the straw hat of a married woman who is having a secret rendezvous with her lover. In order to save the woman's honor, Fadinard must find the exact same type of hat to replace the one his horse ate and still be able to get to his wedding on time.