Paleographer and writer Anton Glebovich Kosmich finds in the binding of an ancient book a parchment with encrypted information about treasures hidden in the dungeon of the castle. It gradually becomes clear that the last scion of the family of the Olshansky princes, who collaborated with the Nazis during the war, is also looking for the treasure. In the dungeon of the castle, along with treasures of the 17th century, materials from the SD archive are also hidden. The spaceman is in mortal danger.
Виктор Евграфов
as Космич / Валюжинич
Rimantė Krilavičiūtė
as Сташка / Гордислава
Эдуард Марцевич
as Марьян
Леонид Марков
as Лыгановский
Геннадий Гарбук
as Лопотуха
Stasys Petronaitis
as Высоцкий
Юрий Катин-Ярцев
as Мультан
Henrikas Kurauskas
as Хилинский
Игорь Васильев
as князь Витовт Ольшанский
Mikhail Matveev
as ловчий князя Витовта
Zdislav Stomma
as пан Панольчик
Пётар Юрчэнкаў старэйшы
as Михаил Иванович Змогитель
