1933, Mother Superior Agnes offers sanctuary to a desperate young woman fleeing for her life. Only to wake in the morning to discover a terrible fate has befallen one of the Sisters – in a room locked from the inside. Agnes can’t help but fear that she has allowed a great evil to enter the convent, but she has no idea how far reaching the consequences of that one fateful night will be…

Over 80 years later, Kate Parker, divorced, alcoholic, and broke, moves into the dilapidated old convent she dreams of turning into a bed and breakfast, whilst changing her life. Although the locals refuse to go near the place at night, Kate is determined to stay while the renovations take place. But when she starts to hear strange noises at night, and the crucifixes she had removed reappear on the walls, Kate starts to suspect she is not entirely alone in her new home.