On Halloween night, a gruesome group of the United States' most notorious and colorful serial killers escape from Statesville Asylum and descend on a giant funhouse whose theme is based on their different reigns of terror. The unsuspecting carnival goers think that the carnage created is just part of the show, that is, until they become part of the main attraction.

The only people left to stop them are a rag tag group of college kids, a clueless Deputy and the local Sheriff, who seems to have a strange attachment to the leader of this gaggle of maniacs, the silver tongued devil, "Manny the Prophet".