Two friends are helping the wounded Red Army officer hiding from Whites.
The investigation of a complex, complicated case of the murder of an engineer, a former prisoner of a Nazi concentration camp. The criminal, one of the executioners of this camp, did not escape retribution.
The main character of the film, Nikolai Alekseevich Kurylenko, works as a master mentor at a computer factory. He helps his students not only to master the basics of mastery, but also to get out of difficult life collisions...