In the isolated grand country manor, James McAvoy's Thomas spends a passionate and paranoid weekend with his ex-lover Peter (Lucas Bravo), an obsessive fan Dolly (Leila Farzad), and a potential muse Jemima (Almudena Amor). Aisling Franciosi plays Patricia, who joins the gathering. As chaos erupts over the course of the tumultuous days, some won't make it out alive.