The film is a reflection on the responsibility of man to other people, native nature and the world around us, the problem of preserving Lake Baikal, on the banks of which a large construction project has unfolded. The first half of the 60s of the XX century, the story of the love of young Lena Barmina to an adult respectable person, bearing on his shoulders a heavy burden of responsibility for the activities of a huge enterprise. Construction engineer Chernykh and Lena, the daughter of a scientist, are doing everything to save the lake from harmful and unjustified plums. A difficult relationship develops between them and soon Lena realizes that she is in love. But after learning that Chernykh is married, the girl leaves...
Oleg Zhakov
Natalya Belokhvostikova
Vasiliy Shukshin
Valentina Telichkina
Natalya Arinbasarova
Mikhail Nozhkin
Vadim Spiridonov
Nikolay Eryomenko
Boris Shadurskiy
Boris Belousov
Aleksandr Snykov
Zoya Rupasova
Mariya Fonina
Gennady Nekrasov
Yuriy Kuzmenkov
Margarita Zharova
Iren Azer
Natalya Bondarchuk
Natalya Gvozdikova
Nina Maslova
Nadezhda Repina