Lydie Vallois

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.

Taking advantage of their uncle's absence, André and Raymond Rafet organize a New Year's Eve party at his house. The uncle returns unexpectedly, disturbs the party, threatens his nephews to disinherit them and then locks himself in his office. A few minutes later, he is found dead, poisoned.

A student, who wishes to become an opera singer, is helped by a good boy, Saturnin, who improvises as a manager. The student succeeds and becomes famous, without ever forgetting little Denise whom he no longer believes worthy of his love. His guardian angel definitely fixes things.

Jean Vernet, an unselfish banker, feels fine : he has a charming mistress, Jacqueline ; a godson, Fernand, that he took in when he was a child and that he has brought up and cherished ever since ; a faithful friend, Lamblin ; and an adorable dog. But things are not so rosy as they look. Adrienne, Jean's sister, hates Jacqueline and is prepared to do everything to separate the couple. Worse, it looks as though Fernand has betrayed his godfather by sleeping with Jacqueline. To know more about those around him, Jean, a modern Volpone, decides to fake deafness.

An airplane manufacturer asks his son-in-law to try out the prototypes he builds. This one ends up having an accident because of fatigue, and pushes the sacrifice to help his rival.