A group of friends are bound for a horror-themed Halloween event at a local amusement park a sprawling labyrinth of rides, games, and mazes that travels the country and happens to be in town. But for one visitor, the ghoulish carnival of nightmares is not the attraction it is a hunting ground. On the night the friends attend, a masked serial killer turns the amusement park into his own playground, terrorizing attendees while the rest of the patrons believe that it is all part of the show. As the body count and frenzied excitement of the crowd continue to rise, who will fight to survive the night?