This is called the first Soviet science fiction film because of its "futuristic" sets on Mars, although most of it takes place in Moscow. The movie is set at the beginning of the NEP (New Economic Policy) in December, 1921. A mysterious radio message is beamed around the world, and among the engineers who receive it are Los, the hero, and his colleague Spiridonov.
IMDb 6,3/1019291 h 20 min 
