Mirium Jones suffers from schizophrenia. Estranged from her husband because of an illicit affair with a younger woman, Mirium travels alone to the land of her dreams. Sad and lost, she finds herself in an ancient Basilica where she makes a promise to the Devil himself. After returning to the States, Mirium reunites with her husband Gabriel and they set out to begin a new life in a new home, isolated in the forest many miles from the city. Strange images begin to haunt Mirium, and after a violent attack, Gabriel disappears. Now alone and isolated, Mirium's terrifying demonic manifestations begin to drive her to the edge of sanity. Or has the Devil come to take his due?