Doctors Kruvajan and Gorobec and (Andrea Checchi and John Richardson) accidentally revive Princess Asa (Barbara Steele), a witch who swore to destroy the Vajda family when she was gruesomely executed two centuries before. With the help of her demonic henchman Javutich (Arturo Dominici), Asa's plan is to possess the body of young Katia Vajda (also Steele), kill her father the Prince (Ivo Garrani) and begin a new reign of terror.
Not much need to be said about this classic, Bava is a Horror legend and this is indeed one of the best films to come out of Italy and one of the most important films to the genre itself. This film is ace on all levels, great cast, great atmosphere & plot. A must have and essential to anyone who loves Horror!

