After the war, Trofim returned to his native village from Germany with a girl who had lost her memory in a concentration camp. The care and compassion of the villagers helped the girl to return to a full-blooded life.

A Russian investigator and a Buryat policeman are investigating the murder of a truth-seeking huntsman in the Baikal taiga.

The film tells about the complex relationship between two chemical scientists. Viktor Sviridov arrived from the province, where he works as an engineer at one of the factories, at the metropolitan institute in order to defend his project related to an urgent scientific problem. However, without the support of a longtime friend Alexei Grekov, he has no chance: most members of the academic council are opposed to his project and himself. But Grekov is also forced to choose between his wife's scientific career and obligations to another.