The film is based on the popular science-fiction novel “Professor Dowell’s Head” by Russian writer Alexander Belyaev. For many years, a prominent scientist had been striving to solve the problem of immortality. He shared the results of his daring and risky experiments with his colleagues. But one day something happened that no one could have foreseen: the professor had disappeared. The best student and follower of Professor Dowell tries to use the results of his scientific research for criminal purposes. It looks like he is going to succeed…