An adaptation of a Philippe Grimbert's novel based on a true story. The story of a Jewish family in post-WWII Paris is told from the perspective of 10-year-old François. He is a typical Jewish boy – a good student and not very athletic. His parents try as hard as they can to escape Jewish stereotypes. They are both athletes, exemplary French citizens, and avoid talking about the Holocaust. François retreats into himself and invents an imaginary brother who is a great athlete. From here on in unfolds a drama that takes place over the course of thirty years and gradually exposes the family secret.