A group of stage actors lock themselves in the theater for a rehearsal of their upcoming musical production, unaware that an escaped psychopath has sneaked into the theater with them.

An old Gothic cathedral built over a mass grave develops strange powers that trap a number of people inside with ghosts from a 12th Century massacre seeking to resurrect an ancient demon from the bowels of the Earth.

A cemetery man must kill the dead a second time when they become zombies.