Kraskov and Vera have long loved each other. They are unable to part, however, and connect their destinies can not and have already accepted the circumstances of life: he has a family, three children. A chance meeting in Moscow with a young couple, familiar with the rest in the South, pushes them to a decisive step…

In the north of the Urals, the construction of a chemical plant has begun. Construction manager Pyotr Musatov appoints Anton Kitaev, the husband of his sister, a direct and honest man, a former front-line soldier, as a deputy. Anton soon realizes that Peter is a typical careerist, pursuing only selfish goals. Kitaev sharply criticizes the leadership. As a result, he breaks up with his wife, who supports her brother in everything. Moreover, rivalry in love is added to the confrontation in the work - Peter and Anton are in love with one woman ...

In the house of goldmaker Tikhon Kondratievich Molokov, carnival is celebrated noisily, on a grand scale, with gypsies. Everyone drank pretty, and when the mayor tried to “seduce” the owner’s daughter Anisya, the girl’s father broke his nose. Frightened by the consequences of this incident, Tikhon Kondratievich decided to flee the city.

Young geologist Sergei Nesterov, having returned from the army, intends to continue his work, interrupted by the war, on exploring industrial deposits of Ural diamonds. His enthusiasm surprises his boss, puts his fiancée Varvara in an awkward position, and gives other geologists a perfect excuse to mock him. But he is warmly supported by the district committee secretary Salomatov. Sergei steadfastly pursues his goal and, in the end, finds the richest diamond deposits.