Demons of the Mind

A mad baron (Robert Hardy), haunted by memories of driving his wife insane, is obsessed with the "heritage of disorder" that he thinks might afflict his two grown children (Gillian Hills and Shane Briant), whom he keeps locked up in his beautiful castle home, searching for a "cure." With the help of bald manservant Klaas (Kenneth J. Warren) and stern aunt Hilda (Yvonne Mitchell), he drains their blood to keep them weak, forbids them to see each other (there's incest involved) and ignores the expert opinions of a doctor (Patrick Magee). Meanwhile, there's a rapist/murderer on the loose terrorizing a quaint neighboring village.

This psychological horror story is a fine deviation from Hammer's cycle of monster movies, highlighted by excellent period costumes and sets (especially the castle) and Christopher Wicking's provocative, complex screenplay (which resembles V.C. Andrews' FLOWERS IN THE ATTIC, written later). Only the finale, with a mob of torch-carrying villagers hunting Hardy down a la FRANKENSTEIN, really detracts from this well above par Hammer production.