Halloween is approaching in the new year. The annual Grand Mountain Carnival is about to be held in the small town of Green near Beauty Lake in West Virginia. Young men and women from all over the country gather here to enjoy music and food. Legend has it that two hundred years ago, a massacre related to cannibalism occurred in the town. But today, such a bloody and cruel story will only make the daring young people more curious. Billy (Simon Ginty), Julian (Oliver Hoare), Cruz (Amy Lennox), Rita (Roxanne McKee), Gus (Paul Luebke) and other five young people are part of this group of revelers. But on the way, they accidentally hit the perverted demon Maynard (Doug Bradley) who has been hiding in the town for many years and has killed countless people. As night fell, the minions who obeyed Maynard lost control and began a bloody Halloween belonging to the devil...