When Christopher Lee tells you to leave well alone, well you should - even if you are Peter Cushing! The latter is "Maitland" who is offered a gruesome artefact by his rather dubious supplier "Marco" (Patrick Wymark) and when he mentions it to his collecting rival "Sir Matthew" (Lee) he is told that this was recently pinched from him and well, he decides to ignore the advice. It doesn't take him very long before he rues that decision. This skull belongs to the Marquis de Sade and his spirit is looking to continue to cause as much mischief as he can! To those ends, it can take over the minds of... read the rest.