Due to be crowned King of the Netherworld by his mentor Merlin the Magician, Count Downe — son of Dracula — falls in love with beautiful mortal Amber and finds himself in conflict with Baron Frankenstein, who is vying for the same honourary title.

Five strangers encounter the mysterious Crypt Keeper while viewing old catacombs in the English countryside. Through a series of terrifying stories, each one learns their fate.