Noah, Jack, and Phil are three average guys who collect horror memorabilia and have a running competition to see who can come up with the most extreme or repulsive horror movie for their weekly guys' night. When one of the friends gets the opportunity to steal tickets to an exclusive club that touts offering a realistic, immersive torture simulation, he jumps on the opportunity. Once they arrive at the theater they quickly realize that it isn't a simulation at all, and they have delved into an underground world that they don't belong in. They have to uphold their stolen identities while trying to escape and not die (or kill anyone else) in the process.