Lust for a Vampire, also known as Love for a Vampire or To Love a Vampire, is a 1971 British Hammer Horror film directed by Jimmy Sangster, starring Ralph Bates, Barbara Jefford, Suzanna Leigh, Michael Johnson, and Yutte Stensgaard. It was given an R rating in the United States for some violence, gore, strong adult content and nudity. It is the second film in the Karnstein Trilogy, loosely based on the 1872 Sheridan Le Fanu novella Carmilla. It was preceded by The Vampire Lovers (1970) and followed by Twins of Evil (1971). The three films do not form a chronological development, but use the Karnstein family as the source of the vampiric threat and were somewhat daring for the time in explicitly depicting lesbian themes.