The movie tells about the life of Soviet scientists. Professor Dobrotvorsky, together with his colleague Losev, is on his way to completing a scientific work of great importance in medicine. Professor Dobrotvorsky's friend Academician Vereisky learns from a foreign journal that important data about this work has fallen into the hands of American businessmen.

The movie tells about the life of Soviet scientists. Professor Dobrotvorsky, together with his colleague Losev, is on his way to completing a scientific work of great importance in medicine. Professor Dobrotvorsky's friend Academician Vereisky learns from a foreign journal that important data about this work has fallen into the hands of American businessmen.