The fascists are trying at any cost to force the young scientist Hernan Ramiro to give them his invention, but all their attempts are in vain. Having miraculously escaped death, Ramiro seeks revenge on the executioners. He builds an amazing car, "Lucifer", almost invulnerable to enemies, and begins to fight the fascist regime on his own. But all his efforts end tragically, because even a very talented and courageous person cannot win such a struggle without relying on the masses. The science fiction novel of the famous Ukrainian writer Vladimir tells about the tragic fate of a genuine scientist in a country dominated by a fascist dictatorship Vladko.