A preternatural spirit that haunted Jon (Corey Feldman) as a child is summoned by an ill-conceived séance to liven up a party only to unleash a litany of horrors and murders on the participants and anyone in his way.

The story will follow a medium who convinces her husband to kidnap a child so she can help the police solve the crime and achieve renown for her abilities. When her true intentions come to light, however, her husband realizes the plan threatens to consume them both. The novel was previously adapted as a film in 1964 starring Richard Attenborough and Kim Stanley.