A group of friends decides to celebrate Halloween by visiting a remote funhouse attraction that promises thrilling scares. Unbeknownst to them, a dangerous group of psychotic inmates has escaped from a nearby asylum and taken over the funhouse, disguising themselves as the attraction's performers. As the night progresses, the friends slowly realize that the horrors they are encountering are not staged, but very real and deadly.

Chaos and terror escalate as the friends desperately try to escape the clutches of the homicidal maniacs. The authorities remain unaware of the true nature of the events unfolding at the funhouse, leaving the friends to fend for themselves. With each room presenting a new and horrifying challenge, survival becomes a matter of life or death as they navigate the blood-soaked corridors, hoping to make it out alive before becoming the next victims in a night filled with unspeakable carnage.