Val McKee and Earl Bassett are in a fight for their lives when they discover that their desolate town has been infested with gigantic, man-eating creatures that live below the ground.
A director is filming on location in a house where seven murders were committed. The caretaker warns them not to mess with things they do not understand (the murders were occult related), but the director wants to be as authentic as possible and has his cast re-enact rituals that took place in the house thus summoning a ghoul from the nearby cemetery to bump the whole film crew off one by one.
Two deranged brothers, who are under the domineering influence of their crazed mother, kidnap young girls and keep them captive in chains in their basement, where they subject them to depraved "games" that often end in torture and murder.
