A young nurse named Jude begins dating Rich, a handsome man who seems to be able to make everything in the world much better, especially for her. After a spate of deaths apparently caused by severe electric shocks, Jude is lead to the eccentric John Strange, a former priest turned Demon Hunter, who (uncannily) believes a demon is to blame for the recent killings. John goes on to try and convince the perplexed Jude of their existence but she doesn't believe any of it, until it transpires Rich is planning on making Jude's son his next victim...