Dykaren plot
Orlov, a former member of the Polish secret police, runs a small caviar importing company in Gothenburg, Sweden. However, his case is a cover for all kinds of criminal activities. He sends his best people, the two Russian brothers Victor and Odessa, to Gdansk in Poland to steal a high-security box. The valuable loot will then be transported to Sweden by fishing boat. But his cronies think otherwise. Odessa convinces Victor to send his girlfriend Irena on the boat. They want to stage an accident by sinking the ship off the Swedish coast.