Adrienne Delaney and Donald Gordon are a young happy married couple from Boston. Adrienne is a writer with a succesfull novel on her name: Blue Moon Rising. Donald is a photographer with a special interest in 18th and 19th century architecture. While working on pictures for a magazine, he discovers a 19th century landhouse on a private island in the rural north of Massachusetts. He convinces Adrienne to buy it. It is cheap, isolated and peaceful: the perfect place to write a new novel.
Then the nightmare and illusions begin. Adrienne wants to find out more about the mansion's history and its previous owner, who turns out to be a famous magician in the late 19th century, Zoltan Carnovasch. Zoltan, who was involved in dark magic, lead a bizarre life and was married five times. All his wives either disappeared or died in painfull ways. While Adrienne discovers more facts about Zoltan and his life, Donald is beginning to change, becoming darker, hateful and angry. It appears he has become possessed by the magician or whatever evil Zoltan was possessed by. Then the murders begin... Will Adrienne escape the faith of Zoltan's wives and save her husband from his curse?