Two Long Hoots in the Fog

In a deserted tundra on the lake a seaplane makes an emergency landing on board of which bank collectors carry a large amount of money A storm begins and the plane relates to the river delta An unknown person steals money from an airplane and kills a geologist an accidental witness And a few days later the ship departs from the northern port for the last navigation voyage where a recidivist hides among the motley company of passengers and the captain begins his own investigation