When a young priest is found brutally murdered in a remote Romanian monastery, the Vatican dispatches a team to investigate a potential case of demonic possession. Leading the inquiry is Sophie Cookson as a psychiatrist whose scientific convictions are about to be shattered, alongside a seasoned exorcist played by Corneliu Ulici. They soon encounter a deeply troubled woman, portrayed by Brittany Ashworth, whose terrifying ordeal appears to be at the center of the sinister events. Directed by Xavier Gens, this chilling horror-thriller plunges its characters into a harrowing battle against an ancient, malevolent force that exploits faith and fear. As the investigation deepens within the monastery’s claustrophobic walls, the team must confront their own demons while racing to uncover a truth more horrifying than they could have imagined, testing the very limits of their belief and sanity.