In this captivating French mystery-thriller, Dr Lilian Steiner (Jodie Foster) is an American psychiatrist managing a structured life and practice from her elegant Paris home. Her controlled world begins to unravel, however, when she discovers that her long-term patient, Paula Cohen-Solal (Virginie Efira), has unexpectedly died. Plagued by uncharacteristic guilt and a suspicion of foul play, Lilian becomes convinced that Paula was murdered by her hostile husband, Simon Cohen-Solal (Mathieu Amalric). Driven by obsession, she enlists her ex-husband, Gabriel Haddad (Daniel Auteuil) to aid her in uncovering the truth.

Director Rebecca Zlotowski brilliantly blends Hitchcockian suspense with relationship comedy in this sleek production. Crucially, the film marks Foster's first leading role completely in the French language. Following its world premiere at the 2025 Cannes Film Festival, Foster made history as the first American actress nominated for a Lumière Award.