A funny story about three best friends - young scientists who swear to not get married and concentrate only on science.
| Actor | Role |
|---|---|
 Mikhail PolyakMark | Mark |
 Vsevolod AbdulovAndrei | Andrei |
 Vladimir NosikKonstantin | Konstantin |
 Boris Chirkovprofessor Sinelnikov | professor Sinelnikov |
 Natalya BespalovaNastya | Nastya |
 Tatyana FyodorovaZoya | Zoya |
 Svetlana KryuchkovaOlga | Olga |
 Aleksandr Belyavskiycommentator | commentator |
 Nikita Bogoslovskiypiano player (uncredited) | piano player (uncredited) |