Movie is about magic power of science able to bring Russian Tsar Ivan Vasilyevich Grozniy to usual Moscow apartment, and to send to his place a cowardly superintendent and a pilferer. Once engineer Timofeev wasshocked by his own invention – a time-machine started to run connecting his apartment with great tsar Ivan Vasilyevich Grozniy’s chambers, whogrieved about his luxurious former life however he did not fall into depression in new Moscow. Before this significant event superintendent Bunsha and criminal Jorj had been in young inventor’s apartment. They disappeared in reverse direction.