After escaping Russia's communist revolution, Léon Theremin travels to New York, where he pioneers the field of electronic music with his synthesizer. But at the height of his popularity, Soviet agents kidnap and force him to develop spy technology.

• Kaga Bay
• Channel 4 Television
• Leon Theremin
• Clara Rockmore
• Robert Moog
• Nicolas Slonimsky
• Paul Shure
• Henry Solomonoff
• Suki Bader
• Beryl Campbell