When his stellar career as a police negotiator went down the tubes under unexplained circumstances, Jack Nightingale switched to catching cheating spouses in his new occupation as a private investigator.  Barely making enough to scrape by and keep himself in cigarettes, he is dumbfounded to learn that he has inherited a huge mansion from a man claiming to be his father, and although the property is heavily in debt, he finds a secret stash of creepy but priceless books dealing with witchcraft and Satanism.