After fleeing the communist revolution in Russia, Leon Theremin makes his way to New York, where he becomes a trailblazer in electronic music through his invention of the synthesizer. However, just as he reaches the peak of his fame, he is abducted by Soviet operatives and compelled to work on espionage technology. This captivating documentary, penned and helmed by Steven M. Martin, delves into the “unusual” music and fascinating life of a man who was both an innovative inventor and a significant figure in the music world.