A physician discovers that two children are being kept virtually imprisoned in their house by their father. He investigates, and discovers a web of sex, incest and satanic possession.
Demons of the Mind is a 1972 British horror film, directed by Peter Sykes and starring Gillian Hills, Robert Hardy, Patrick Magee, Michael Hordern and Shane Briant. It was produced by Anglo-EMI, Frank Godwin Productions and Hammer Film Productions, and written by Christopher Wicking, based on a story by Frank Godwin.
