Michel, a Parisian artist, is being hounded by numerous impatient creditors. To make things worse, when he is embracing the woman whose portrait he is painting, he is surprised by his indignant fiancée Béatrice. Suddenly, Michel learns that he holds the winning ticket in the Dutch Lottery. But when he goes to retrieve the ticket from the pocket of his jacket, he finds that Béatrice has given the jacket to a stranger who was in need. Now everyone has a keen interest in finding that jacket.