A few days earlier, Bilal and Yasmine keep watch at the bedside of their sick mother. She raves about their missing father, maybe alive. Only clue: he was last seen in a strange house in the middle of the woods.

Back to the present. Suddenly separated from her brother, Yasmine alerts the authorities. Constable Barthélémy leads the investigation in the basement of the house. But Isabelle opposes a version of the facts which incriminates their father, Mohamed.