France, 1942. Even during the war, when the country was occupied by German troops, the life of students of the Catholic college went on as usual. Didier, who secretly knits blankets for French soldiers, having received a letter from two girls from a nearby college, decides to go on a date with his friend Bernard, a rather frivolous teenager. It turns out that the girl is only one and her name is Marie-Helen, an older and more mature girl. Didier is not thrilled with her. But Bernard kindled with love. But to approach her is not so easy.