During the First World War, before joining a squadron at the front in 1918, Herbillon (Jean-Pierre Aumont) has a liaison with Helene (Annabella), a married woman. The young man discovers that his mistress is none other than the wife of Maury (Charles Vanel), an aviator friend.

A man creates a national scandal after he mistakenly kisses the wrong woman in a darkened cinema. The following year it was remade as an American comedy One Rainy Afternoon, released by United Artists.

Two mistresses snubbed by their respective lovers crash a military ball and their lovers then resort to an unusual strategy to win them back.

Bastien and Ségard decide to leave France for Canada. They buy tickets aboard a rickety craft, the Tenacity, that never quite seems able to leave port. While stuck there they both fall for the innkeeper's daughter, which causes them to rethink their Canadian notions.