The action takes place at the construction site of a large power plant in Siberia. A professional conflict arises between the construction manager, Krotov, and the chief engineer, Yuryev, which is complicated by personal relationships—Elena, Krotov's wife, has genuinely fallen in love with Yuryev, a man of principles, honesty, and kindness.
| Actor | Role |
|---|---|
 Grigori AbrikosovNot listed | Not listed |
 Alla ParfanyakNot listed | Not listed |
 Elena KorovinaNot listed | Not listed |
 Garri DuntsNot listed | Not listed |
 Aleksandr KashperovNot listed | Not listed |
 Vladimir OsenevNot listed | Not listed |
| MMaksim GrekovNot listed | Not listed |
| BBoris ShukhminNot listed | Not listed |
 Vyacheslav DuginNot listed | Not listed |
 Valeriya RazinkovaNot listed | Not listed |
 Vladimir EtushNot listed | Not listed |
 Alla KazanskayaNot listed | Not listed |
 Evgeniy FyodorovNot listed | Not listed |
 Vladimir KolchinNot listed | Not listed |
 Nikolay LebedevNot listed | Not listed |
 Daria PeshkovaNot listed | Not listed |
 Aleksey KotrelevNot listed | Not listed |
 Vladimir ShlezingerNot listed | Not listed |
| AAlexander BiziukovNot listed | Not listed |