Madame Rosa lives in a sixth-floor walkup in the Pigalle; she's a retired prostitute, Jewish and an Auschwitz survivor, a foster mom to children of other prostitutes. Momo is the oldest and her favorite, an Algerian lad whom she raises as a Muslim. He asks about his parents; she answers evasively. As she ages and takes fewer children, Momo must do more for her; as money is tight, he tries to ...