Jessica Burns enlists the help of her best friend, Brian, in order to document the relentless harassment she's received from her former friend, Avery Keller, one of South Brookdale High School's most popular students.

　　一群好友決定在萬聖節的夜晚前往郊外的鬼屋景點試膽，鬼屋內的工作人員不僅舉止怪異，而且全戴著陰森駭人的面具，隨著他們漸漸深入鬼屋內部，屋裡各種凶險的殺人機關也開始啟動，原本看似無傷大雅的嚇人把戲也變得越來越真實…