
16/09/1974
The protagonist of the film is a female microbiologist and inventor of penicillin. The discovery of this life-saving drug was preceded by many years of scientific research, which Dr. Lebedev conducted in his laboratory in a small provincial town at the beginning of the century... Tanya, a girl from the neighborhood, accidentally finds herself in the doctor's house, where she first encounters the mysterious world of science...

Lyudmila Chursina
as Татьяна Петровна Власенкова

Lyudmila Gurchenko
as Глафира Сергеевна Рыбакова

Vladislav Dvorzhetsky
as

Aleksandr Demyanenko
as

Fyodor Nikitin
as

Anna Aleksakhina
as

Igor Dobryakov
as

Vladislav Strzhelchik
as

Igor Dmitriev
as

Vatslav Dvorzhetsky
as

Lev Durov
as

Eleonora Shashkova
as

Andrei Apsolon
as

Liliya Gurova
as

Boris Kokovkin
as

Pyotr Lobanov
as

Sergei Polezhayev
as

Antonina Pavlycheva
as

Vera Titova
as

Arkadi Trusov
as

Efim Kopelyan
as

Laimonas Noreika
as

Lev Lemke
as

Georgiy Shtil
as
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