||Mr. Kenton meets Mr.Thompson, an elderly rich occultist who has a interest in the black arts and all manner of supernatural beings. Mr.Thompson is near death and wants Kenton to wait on him and keep his wife, the young and exotic Jet, occupied. Jet convinces Kenton to kill Thompson so they get his money. Kenton does just that, killing Thompson with a small devil figurine. After Thompson dies, the figurine bites Kenton. Kenton finds himself being possessed and transformed into Satan and Jet soon realizes that Thompson was the "Devil's Ally".