The film follows Maxime Nathan and his family in France during the years before and after World War II. François Grimbert (played as a young boy by Valentin Vigourt and as an adult by Mathieu Amalric) grows up in Paris in the 1950s. He is the skinny, sickly son of two marvelously athletic parents, Tania (
Cécile de France) and Maxime (
Patrick Bruel). For a while, he dreams of a stronger, fitter, more charismatic older brother to compensate for his own feelings of inadequacy. Only gradually does he learn of his parents' tragic past and that he had a sibling — a half-brother named Simon, his father's first son. Simon is the big secret, but the discovery opens the door to further revelations and deeper enigmas. François knows that his parents met sometime around the war, and he imagines their courtship and marriage in the shadow of atrocities which nobody talks about any more. Eventually he learns that his family is Jewish. His parents were each married to someone else before the Holocaust, and his father had a son, Simon. His parents' first spouses and his half-brother Simon were arrested by the Nazis and gassed at Auschwitz. His parents have never fully recovered from the trauma and eventually they both commit suicide. ==Cast==