Two hitch-hikers are on the way to Marseilles pursued by her husband.

The head of a school in a little French country town encourages the playful romances between his young students, as well as a love of jazz music.

Marie Leroux, who is married to Charles, an honest, understanding country doctor, lives an uneventful, rather monotonous life.Her husband is a kind man but he does not give her any thrill or excitement. One day, Marie meets Olivier Dumas-Beaulieu, a handsome industrialist, who is in the process of leaving his fiancée Corinne, despite her being pregnant by him. It is easy for the confirmed womanizer he is, to seduce Marie, who very foolishly thinks she has found true love. Shortly afterward Charles is shot dead by Olivier while the two men were having a quarrel about Marie. The latter, who finds the corpse, believes her husband has committed suicide. Which is not the police's opinion and Marie is arrested and condemned to ten years in prison. Annihilated by such unfair treatment and, worse, by the separation from her beloved eight-year-old daughter, she still manages to survive and to serve her sentence.

1944, France experiences its last days of German occupation. A microcosm representative of the various attitudes adopted during this troubled period, some heroic, others less brilliant, the Grégeois family, scattered by the war, will strengthen its ties according to the Allied advance on the territory and the liberation of Paris, with its joys but also its sorrows, because not all of its members will survive the relative chaos that will characterize this end of the world war.

A lieutenant, at the head of a commando ready to land in France, finds among his men a maquisard who had tried to kill him in the past.