Murder in a Blue World (1973)
Una gota de sangre para morir amando is a 1973 Spanish science fiction/crime film directed by Eloy de la Iglesia and starring Sue Lyon, Christopher Mitchum and Jean Sorel. Shot in English and set in the near future, the film is a crime thriller. The plot follows a respectable nurse, who seduces young men, take them home to bed, listen to the post-coital beating of their hearts, and then stab them to death with a surgical scalpel. The film takes some cues from Stanley Kubrick's A Clockwork Orange. It was released in the United States as Clockwork terror.
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