Tatyana Kaletskaya

Sasha Kazarinov, an oil college student, is undergoing an internship at one of the drilling rigs in the northern taiga. At first, his relationship with drilling foreman Leushin did not work out. Leushin does not trust the city boy and does not put Sasha on the winch, although it is the topic of his thesis. But gradually, with his diligence, the intern wins the trust of the master.

Alla and Igor decide to get married. It is the second marriage for both of them. Resentment towards her ex-husband, who is busy with science and indifferent to everyday problems, has embittered Alla. She is sure that he and his parents want to take away her child. In her anger she does not notice that she is unfair to her loved ones and makes her son unhappy.

Fyodor and Kseniya for many years worked at various construction sites. They constantly moved from one hostel to another and dreamed of their own cozy nest. Their dream came true after fifteen long years, and this made them incredibly happy. Kseniya is pregnant, the characters will finally begin a new life and become a full-fledged family. Fyodor is convinced that his calling is to provide for his family. He works hard and rarely sees his family. Kseniya lacks his attention. The couple began to move away from each other.

The events that are crucial to the fate of the heroes take place during one night shift at one of the country's largest construction sites.

When Nina Klementyevna, a young scientist, created her laboratory, Zoya became her loyal and devoted assistant. Many years later, having raised three children, Zoya Dmitrievna, a laboratory assistant, meets San Sanych, a kind but weak-willed and drinking man. And the relationship with Nina Klimentievna is collapsing...