 In 1940, while escaping from Paris with her two children, the widowed schoolteacher Odile (Emmanuelle Béart) has her car bombed by the German airplanes and is helped by the mysterious Yvan (Gaspard Ulliel. They move into the forest and the find a huge house, where they decide to lodge themselves. Although being only seventeen years old, Yvan arises the desire in Odile in times of war.