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...
The rich widow Marta Anker, owner of a renowned trading company, loves the poor fisherman Ansą Balčiai. The locals keep the ongoings under close watch.
