The House That Dripped Blood (1970)
A Scotland Yard investigator looks into four mysterious cases involving an unoccupied house: 1) A writer encounters a strangler of his own creation, 2) Two men are obsessed with a wax figure of a woman from their past, 3) A little girl displays an interest in witchcraft, and 4) A film actor discovers a cloak which gives him a vampire's powers. (IMDB Wes Clark)
Paul Henderson: That's what's wrong with the present day horror films. There's no realism. Not like the old ones, the great ones. Frankenstein. Phantom of the Opera. Dracula - the one with Bela Lugosi of course, not this new fellow.
On the films initial UK release, the British censor wanted to give it an A rating (equivalent to PG) because its lack of gore. Fearing that this would harm box-office returns, the distributors asked for it to be re-rated X or they wouldn't release it. The censor concurred.