The film is dedicated to the working class. On the example of the fates of the main characters, their biographies and characters, it reveals such urgent problems as the attitude of a working man to labor, the conformity of his inclinations to his chosen profession. The obsession of the heroes and their complete dedication to their favorite work is the core of the script's dramaturgy. For both Nyurka and Mikhail Antonovich, the factory is their home, with which their entire lives are connected.