Crypt Of The Vampire (1964)
aka’s: La Cripta E L’incubo/La Maldición De Los Karnstein/La Maledizione Dei Karnstein/Terror In The Crypt
Count Karnstein (Christopher Lee) sends for a doctor to help his sick daughter Laura (Audry Amber). Her nurse believes she is possessed by the spirit of a dead ancestor, Carmilla. A young woman becomes intrigued by the mysterious deaths surrounding Laura after a carriage accident outside the castle forces her to stay. They become close friends until Laura becomes convinced the spirit of Carmilla is forcing her to kill.