As kids, Todd is institutionalized for a murder whilst his twin goes free. 10 years later, on Thanksgiving, Todd escapes and a killing spree begins in his neighborhood.
When a man-eating cave creature appears with a fortune in uncut diamonds around his neck, Dr. Chambers' daughter Denae hires adventurers C & C Salvage to find the underground source of the gems.
An old Gothic cathedral, built over a mass grave, develops strange powers which 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.
