A Red Army officer Polevoy possesses a navy dirk with a secret message encrypted in its handle. The second part of a message belongs to a White army officer Nikitskiy. It's up to three young friends of Polevoy to uncover the mystery.

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Main Cast: Sergei Shevkunenko, Vladimir Dichkovsky, Emmanuil Vitorgan, Viktor Sergachyov, Natalya Chemodurova, Zoya Fyodorova, Leonid Kmit, Mikhail Golubovich, Eduard Goryachiy, Kuzma Kulakov

Director: Nikolai Kalinin

Writer: Anatoli Rybakov

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Cinematographer:

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