In the early 17th century, an innocent young Persephone was falsely accused and put on trial for her life. Her fate seems to be sealed except for the timely intervention of the mysterious Reverend Mother, who offers her not just shelter, but hope. For the Reverend Mother is the self-proclaimed leader of a small religious secluded Priory. Where the sisters dedicate their lives to the Lord and seek redemption for their past. But upon arrival, Persephone suffers from terrifying visions, and soon realizes that it is not salvation that awaits, but a battle for her soul.