Based on science fiction stories about the relationship between man and robot: A. Belyaev’s “Open Sesame” about how a robot servant robbed two old men; A. Azimova's "Liar" about a robot who can read minds and turns out to be the most humane among people; F. Chilander's "Court" about how robots tried the last person living in the city.
Peter the Great takes a Russian man of African heritage - Ibrahim Petrovich Hannibal - under his wing as the tsar builds his grand navy. After having a disastrous affair in France, Ibrahim vows to never fall in love again, until he sees the daughter of a wealthy boyar. Peter the Great insists the two be married, but Ibrahim goes against the tsar's wishes, refusing to force her to marry him since she doesn't consent. When another man tries to marry her, however, Ibrahim's loyalties and generous nature are put to the test.
The film is set in the 1930s in the USSR. The film tells about one day of the construction of the Magnitogorsk Iron and Steel Works. The heroes of the film are simple construction workers who are burning at work. Upon learning that their colleagues in Kharkov have set a record, they mobilize to break it. The entire construction site was engulfed in immense socialist competition. The teams are ready to complete the work on time at any cost. A Moscow journalist who has come to cover the scale of the great construction project is looking for the hero of his report...