After a breakup, Garance leaves Paris to take refuge in her grandparents’ manor, where she feels a troubling family memory come alive, shaped by obscure rituals and an overbearing maternal legacy. But the shadows of the manor seem to want something else from her. Between disturbing dreams and strangely familiar rituals, she feels the walls closing in… What her family has venerated for generations may not be human, and Garance could hold the key to an unspeakable inheritance.