Nearly 2,500 haunted attractions open each Halloween, with over 30 million customers attending annually. The pressure felt by the creators of the haunted attractions to deliver the most extreme experience imaginable has lead to a dramatic rise in accidents, injuries, and crimes. This is the true story of a group of friends who set out to find the most terrifying haunt in the U.S. -- a fabled traveling haunt that blurs the lines between a carnival thrill ride and a living nightmare. They videotaped their journey. The haunted attractions depicted in this film are real. What happened is still unclear.