A young woman's comfortable life with her boyfriend is disrupted when he leaves for military duty, entrusting her to a playboy friend seeking a fake marriage for inheritance. Complications arise as a prince enters the scene, pursuing her romantically.

World War I aviator Carbot attempts to establish a commercial airline after the war, for the purpose of delivering the mail to the outermost regions of France.

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.