The film tells about the head of the laboratory of virology of the oncological research center of the USSR Academy of Medical Sciences, Doctor of Medical Sciences, Professor G. Ya. Svet-Moldavsky. G. Ya. Svet-Moldavsky in the laboratory among employees, during experiments, at an international scientific conference, with his mother, on a walk in the woods. Employees talk (synchronously) about their supervisor. G. Ya. Svet-Moldavsky in the treatment room for treatment. American, French scientists talk about Svet-Moldavsky.