When affluent Marquis Robert de la Chesnaye (Marcel Dalio) hosts a party at his sprawling property, emotions run high. Guests include Robert's mistress Genevieve (Mila Parely) and pilot Andre Jurieu (Roland Toutain), who fancies Robert's wife, Christine (Nora Gregor). Meanwhile, Schumacher (Gaston Modot) is trying to keep Marceau (Julien Carette) from hitting on his wife (Paulette Dubost). All the while, the servants watch with great interest.