Marek (Jirí Holý), formerly a driver of a long-distance lorry, has served his term for smuggling art works abroad and is released from jail. Years ago, he sacrificed himself and confessed his guilt on behalf of his companions - the drivers Krása, Jelínek, Hess and Novák from the Ministry of Culture who gave them tips. Marek finds Hess and tells him that now he expects the gang to compensate him for the wasted years of his life.

It is the 1920's. The good-looking hostess Věra demonstrates household robots to visitors of the Futurum exhibition. Young inventor Petr comes to her rescue when she tries to flee from two men wanting to take her away. Věra confesses that she has fled from home because her father, a factory owner, wanted to profitably marry her off. Petr is fascinated by the emancipated woman and shows her round his laboratory, where he plans to create a robot of his own - but one that would be far more advanced. Věra cuts herself on a broken test-tube and a drop of her blood gets in the solution. In the morning, they are taken aback to see Věra's double. This lucky chance has helped Petr create an artificial being, Miss Golem. She has a single motive for her actions: to take care of Věra and allow her to do only what is good for her.