When an evil sorcerer wreaks havoc by raising a small army of zombies and using spells to impregnate young girls with monsters, a pair of scientists attempt to thwart the wizard by uncovering the source of his dark power in this horror flick. Along the way, they must deal with black-magic tricks involving snakes and centipedes let loose underneath their skin, nasty sores oozing with worms, and the sorcerer's strange obsession with milk.