The very first work of a young scientist Igor Panteleyev caused a sensation. Not surprisingly, they are interested in foreign intelligence. Soviet security officers are taking measures to protect the scientist. The name of Panteleyev disappears from the pages of newspapers and magazines. The scientist is transferred to work in another research institute, changing his surname to Evdokimov. But due to chance, foreign spies found a researcher.
Владимир Краснопольский
as Игорь Матвеевич Евдокимов / Пантелеев
Лионелла Пырьева
as Марина Александровна Миронова, аспирантка консерватории, жена Евдокимова
Юрий Горобец
as Алексей Николаевич Киселёв, подполковник
Роман Хомятов
as Николай Лагутин
Bruno O'Ya
as Бинкль, атташе
Михаил Майоров
as Владимир Петрович, генерал
Vladimir Kolchin
as Щербаков
Boris Kozhukhov
as Родин
Андрей Файт
as мистер Грин, полковник контрразведки
Mykola Rushkovsky
as Мезенцев
Виктор Байков
as Самарин, парикмахер ("Католик")
Galina Shostko
as секретарь Бинкля
