Beatrice, in her fifties, is a physical education teacher at a high school. Disappointed by the lack of boys in the dance class she teaches, she tries to convince one of her students, Krimo, whom she has recognized as having potential, to join. But Krimo is not easily persuaded, and when Béatrice, tired of hearing his constant "go f*ck your mother" comments, suggests in the middle of class that he go "f*ck his father" for a change, things escalate...

1940, Jeanne Reichenbach turns her back on a peaceful life to link her destiny to Léon Blum. She's been loving him since her teenage years, and is ready to sacrifice her freedom to mary him at Buchenwald, where he's held prisoner. They will survive together.