Conspirator is a 1949 British film noir, suspense, espionage, and thriller film directed by Victor Saville and starring Robert Taylor and Elizabeth Taylor. Based on the 1948 novel Conspirator by Humphrey Slater, the film is about a beautiful 18-year-old American woman who meets and falls in love with one of a British Guards, an officer who turns out to be a spy for the Soviet Union. After they are married, she discovers his true identity and forces him to choose between his marriage and his ideology. When his Soviet handlers order him to murder his young American wife, he is faced with the ultimate choice. The film was made for distribution by Metro-Goldwyn-Mayer.