Uploaded December 2022 | Updated September 2026, 41 minutes ago
A benign real estate deal becomes a sinister standoff between a young Parisian French couple (Jérémie Renier and Academy Award nominee Bérénice Bejo) and a dangerous negationist. Simon Sandberg, a Jewish Parisian architect (Renier) sells his flat’s unused cellar to a seemingly normal and well-mannered former history teacher, Jacques Fonzic (The Untouchables’ François Cluzet). But when Fonzic takes up residence in the cellar, the stranger’s secret life emerges. Slowly and methodically, his far-right, radicalized beliefs about Judaism and conspiracy theories ensnare Simon’s very existence, driving him to more and more desperate strategies to evict the man.
A benign real estate deal becomes a sinister standoff between a young Parisian French couple (Jérémie Renier and Academy Award nominee Bérénice Bejo) and a dangerous negationist. Simon Sandberg, a Jewish Parisian architect (Renier) sells his flat’s unused cellar to a seemingly normal and well-mannered former history teacher, Jacques Fonzic (The Untouchables’ François Cluzet). But when Fonzic takes up residence in the cellar, the stranger’s secret life emerges. Slowly and methodically, his far-right, radicalized beliefs about Judaism and conspiracy theories ensnare Simon’s very existence, driving him to more and more desperate strategies to evict the man.










