
At first, everyone treated Ivan Kondakov, a young inventor, with irony. But a mine is a mine. And so his absent-mindedness, tardiness, and other frivolous behavior were often ridiculed in the miners' newspaper. His school friend Lelia, who had graduated from medical school, no longer understood the fanatic. Only Nina, a newcomer to the mine, supported and defended Kondakov...
Cast

Izolda Izvitskaya
Lyelya

Gennadiy Nilov
Ivan Kondakov

Aleksandr Afanasev
Fedoseyev

Igor Bogolyubov
Tsygankov

Georgi Zhzhyonov
Krylov

Emmanuil Vitorgan
Miner
Yevgeny Barkov
Gorodeichev, Gordeichev
Gennadi Vernov
Tarasov

Aleksei Smirnov
Chauffeur (uncredited)

Vladimir Samoylov
Preobrazhenskiy (uncredited)

Tamara Timofeeva
Unknown

Igor Efimov
Pavel

Vladimir Maryev
Pyotr Emelyanovich

Lyudmila Glazova
Yevdokiya

Stanislav Fesjunov
Sergei
Tamara Stradina
Nina
Crew

Nikolai Rozantsev
Director

Afanasiy Salynskiy
Writer

Arnold Vitol
Script Editor
Aleksandra Borovskaya
Editor
Eugeny Kirpichiov
Director of Photography
A. Sokolov
Assistant Director
Boris Yakovlev
Executive Producer
Semyon Malkin
Production Design
B. Antonov
Sound Director
Nikolai Chervinsky
Original Music Composer
P. Arbuzov
Conductor