A few days from the life of a young scientist responsible for the failed trail.
| Actor | Role |
|---|---|
 Lyudmila DolgorukovaNatasha | Natasha |
 Oleg EfremovColonel | Colonel |
 Yevgeni LebedevNeslezkin | Neslezkin |
 Elza LezhdeyEmma | Emma |
 Aleksei MironovGrim Major | Grim Major |
 Rodion NahapetovVolodya Belov | Volodya Belov |
 Sofiya PilyavskayaZorich | Zorich |
 Yuri PuzyryovPyotr Yakovlevich | Pyotr Yakovlevich |
 Lyubov SokolovaKhudyekova | Khudyekova |
 Nikolai TimofeyevG.B. | G.B. |
 Vadim ZakharchenkoBald Major | Bald Major |