A group of jerky teens decide to spend the night in a "dark ride" called "The Funhouse." The witness a creepy carny in a Frankenstein mask commit murder after an even creepier interaction he has with another member of the travelling carnival. The teens discover they are locked in the dark ride and after another series of accidentally seeing things that they weren't meant to see and theft, get stalked through the ride by masked carny! Mayhem ensues!
Another sleazy slasher film from the man responsible for The Texas Chainsaw Massacre and Poltergiest, Tobe Hooper.