In the secluded Marrowbone house, four siblings seek refuge from a dark past, vowing to stay together at all costs. Led by the eldest, Jack, played with quiet intensity by George Mackay, the family attempts to build a new life, with Jack shielding his younger brothers Billy (Charlie Heaton) and Sam (Matthew Stagg), and sister Jane (Mia Goth). Their fragile peace is bolstered by a tender connection with Allie (Anya Taylor-Joy), a local librarian who brings light into their isolated world. Yet, a sinister presence within the home threatens to unravel their secrets and their sanity. As Jack struggles to maintain their pact and protect his family, the line between reality and haunting delusion begins to blur. Directed by Sergio G. Sanchez, this atmospheric psychological thriller masterfully weaves a tale of familial love, buried trauma, and the ghosts that linger in the shadows of a decaying home, keeping viewers questioning what is truth and what is a desperate coping mechanism until the very end.