Based on the novel of the same name by Leonid Leonov. Young Polya comes to Moscow: she wants to find her father, Professor Vikhrov, and try to understand why her mother broke up with him. Vikhrov is a prominent scientist who has defended the forest from barbaric destruction all his life. The war begins. Professor Vikhrov continues to lecture, proving to students the need to protect the forest. Polya is trying to find out the reasons for the long-standing feud between her father and academician Gratsianskiy. Now, when Vikhrov is already not young and lonely, the professor mentally returns to the past...
Boris Tolmazov
Rufina Nifontova
Nina Drobysheva
Nikolai Gritsenko
Maria Pastukhova
Yelena Fadeyeva
Yuriy Yakovlev
Arkadiy Arkadyev
Sergei Kalinin
Viktor Kolpakov
Semyon Bardin
Ivan Dmitriev
Klavdiya Polovikova
Andrei Nikonov
Lyubov Sokolova
Gennadiy Yukhtin
Klarina Frolova-Vorontsova
Elena Ponsova
Vsevolod Platov
Vasili Makarov
Aleksandr Kashperov
Yevgeni Shutov