A lovely blonde woman (Erna Schürer) comes into possession of her uncle’s castle near Rome, but the governess (Lucia Bomez) claims he planned to sell it, and several people try to push her toward that decision. She's unsure while odd events begin, like ghostly occurrences and disturbing nightmares. Her boyfriend (Roland Carey) suspects something isn't right. “The Doll of Satan” (1969) falls under the umbrella of I…