The Climax Studios Festival of Fear is a Halloween tradition, but with monsters roaming the theme park and a monster movie filming on the adjacent film lot, what hell will break loose when a real zombie surfaces and starts biting? When you can't tell who's alive and who's undead, can a stuntman, a makeup artist, a sleaze-slinging blogger and a pair of former cops stop the end of the world from sneaking off the studio lot and infecting all of California?