On the day of a brilliant dissertation defense, a young scientist unexpectedly dies. Investigation of the facts indicates an accident. However, the discrepancy in the testimonies of colleagues leads the investigator to think about the uncleanness of the hero, who simply used the unpublished results of other people's work.
Андрей Мягков
as Anton Dmitrievich Tikhomirov (young scientist)
Анатолий Папанов
as Igor Mazin (investigator)
Ирина Мирошниченко
as Inna Krotova (former lover)
Владимир Зельдин
as Diaghilev (professor and supervisor of Anton Tikhomirov)
Жанна Прохоренко
as Irina Tikhomirova (ex-wife)
Альберт Филозов
as Ilya Rozhdestvensky (childhood friend and colleague)
Irina Reznikova
as Svetlana Meshkova (fiancee of Anton Tikhomirov)
