Five joyriding teens - One secluded carnival - And four relentless killers. Teenage brothers Mark and Doolen, along with friends, Annie, Jack, and Scottie, are out for a night of fun and adventure. While traveling from Maine to Massachusetts, they see the beckoning beams of spotlights, which leads them to a carnival isolated deep in a New England forest. Upon entering, they find that all of the carnival's occupants have been brutally tortured and are dead or dying. Sickened and shocked by this revolting discovery, they rush for the exit, but find the gate has been locked...and booby trapped. Their predicament worsens once a family of deranged killers, armed with autopsy tools, begins stalking them. The teens realize the killers have one goal in mind: to maim, mutilate, and torture them until they too, become props in this carnival of evil. Spurred on by mind-numbing fear and the will to live, the teens decide to fight back, even though they realize that the price they paid for admission...may be their lives.