Ray Mondy dies as plans to kill his wife Pam for leaving him for another man go horribly wrong. Five years later, he finds a way to return to the living world by possessing live souls thanks to a young medium, Steve Thorndyke, who unwittingly brings Ray back from the dead. Ray seeks vengeance against his former wife, now married to Ron Candleson. While the Candlesons reunite with two teenage children that Ron left behind when he ran away with Pam, Ray torments them in the idyllic forested Bay Haven State Park on Lake Michigan. Steve Thorndyke, the only one who knows the truth about Ray stalks Candlesons and Mondy hoping to stop Ray's terrifying plans of vengeance.