Two scientists grow old and weary together in a secret Soviet Institute, their unconventional friendship the only consistency in a lifetime of personal and professional disappointments.

It is 1953, Stalin has just died. It is a troubled and uncertain period for the whole of the Soviet Union, particularly for the state security services. In the Institute, a secret research facility, the scientists continue their theoretical and experimental work. Every night they strain their ears to listen for footsteps in the dark corridors: who have they come for this time? Who has reported on who? Having survived the fear and humiliation of an interrogation, the Head of the Theoretical Department, Andrei Losev, refuses to cooperate with the security services, only to face a new ordeal back in his own home.

Viktor, the protagonist, a war hero of the war between the Red Army and the Turkish 'basmachi', has to fight off bandits that hope to steal gold from Viktor's village town. TIme to pick up arms once again.

On a stopover in Moscow, a young writer Volodya makes friends with Kolya, who is returning home from a hard night shift. Just as Kolya is about to take a rest, he is met by his old friend Sasha, who wants help getting a deferral from military service so that he can get married.