It is the early 1920s, and New York City has a problem of evil proportions – demons. With devil worshipping on the rise, foul spirits and monsters have begun to surface, causing fear and panic in their wake. Combating this threat is the Magdalene Order – a group of religious officials charged with exorcising the evil that is spreading throughout the city. Rosette Christopher is a young nun who takes on missions alongside her contracted partner – a young demon named Chrono. Now it is up to this unlikely pair to wield God’s power – and plenty of holy bullets – to destroy the menace in front of them and confront the demons of their past.