In France during World War I, Marthe waits for her husband, Jacques, while he fights on the front lines. Marthe then begins a tempestuous affair with 17-year-old François, with whom she had a dalliance before marrying Jacques. Jealous François struggles with the fact that Marthe is married, while she tries to prove her devotion to her young, hotheaded lover. Things become even more complex when Marthe becomes pregnant with Jacques' baby.
Micheline Presle
as Marthe Grangier
Gérard Philipe
as François Jaubert
Denise Grey
as Madame Grangier
Jean Debucourt
as Edouard Jaubert
Pierre Palau
as Monsieur Marin
Jean Lara
as Jacques Lacombe
Michel François
as René
Germaine Ledoyen
as Madame Jaubert
Jeanne Pérez
as Madame Marin
Jacques Tati
as Officer at the bar