Two friends, yesterday's workers, return to the plant as engineers. Andrey becomes the head of the workshop, and Pavel becomes an employee of the State Supervision Authority for Quality. A conflict arises between friends: Andrey “drives quantity,” Pavel tries to prevent the production of low-quality parts.
| Actor | Role |
|---|---|
 Semyon MorozovPushkartsev | Pushkartsev |
 Aleksandr DenisovAndrey Barkalin | Andrey Barkalin |
 Valentina TelichkinaKatya Barkalina | Katya Barkalina |
| YYana DrouzNadya (as Yana Druz) | Nadya (as Yana Druz) |
 Sergei YakovlevShakhotin | Shakhotin |
 Vera BurlakovaMonakhova | Monakhova |
 Nikolay GrabbeDirektor zavode | Direktor zavode |
 Boris KudryavtsevNot listed | Not listed |
 Pavel MakhotinNot listed | Not listed |
| VVladimir MelnikovNot listed | Not listed |
 Valentin SmirnitskiyNot listed | Not listed |