When defrocked ex-priest, Jimmy Holiday, agrees to help an old friend’s sick daughter, Lucy, he unearths unexpected horrors. Blackmoor, his friend’s new residence, has a dark history that makes it appear almost alive. Jimmy must decide if Lucy is only ill, or if the haunting of the house and her apparent possession are real.
After the house begins affecting him as well; seeing colors of magic and his voice taking on an unusual power, Jimmy discovers that he is apparently “marked”. Whatever being “marked” means, Jimmy doesn’t care. He wants to help Lucy. Helping Lucy means performing the exorcism.
Jimmy knows the ceremony, but it's belief that matters. And if a demon is using a little girl as a meatsuit, his faith had better be strong enough to kick it back to Hell. Otherwise, he might damn them both.