This film follows Jean, a young French soldier who is physically and mentally scarred by his experiences on the front lines. He struggles to readjust to civilian life, and his family soon realizes the extent of his trauma. Jean's childhood sweetheart, Madeleine, is now married to his friend and fellow soldier, Pierre. Jean's family fears he will succumb to his despair, and they desperately search for ways to help him find peace.

Mr. de Sergeac surprised his wife in company of a friend and killed her. 15 years later, his daughter Simone, still ignorant of the drama, is engaged to be married with Michel Mignier. The family of the groom learns about it and eventually, so does Simone. Mr. de Sergeac, ashamed of the scandal, decides to go away, but the two lovers talk him into staying with them.