Soyez les bienvenus.

Before the war. Mr. and Mrs. Boisleroi, well off, lived in their castle while their son Jacques courted Geneviève, the manager's daughter. On mobilization, the manager becomes flight captain, Boisleroi a simple waykeeper and Jacques wants to enlist. Refugees arrive: an actress, a player, an old marquis, former owner of the castle and who will die there. All this life together culminates in the marriage of Jacques and Geneviève.