When a couple of disreputable fellows decide to rob the graves in the crypt where they store their chemical waste, a ill-timed earthquake tips over one of their barrels, unleashing a gas that brings laconic blonde Catherine Valmont (Françoise Blanchard) back from the dead (inspiration for Return of the Living Dead). She stolidly uses her sharp fingernails on anyone that gets in her way as she ambles up from the crypt only to return to the castle above it (talk about taking the long way 'round).