A psychologist is sent to a station orbiting a distant planet in order to discover what has caused the crew to go insane.
The exiled settler Alexander Ilyin persuades the goldmines owner Trifon Perfilyev to sponsor the expedition dedicated to the searches of "Sannikov Land", a legendary warm land behind the Polar circle.
Yekaterina Vasilyeva, Vsevolod Sanaev, Vladislav Dvorzhetskiy, Oleg Basilashvili,
Anatoliy Bobrovskiy,
Inspired by actual events in the days of cold war, an escaped convict steels "Saint Luke" painting from a museum which he tries to sell to a foreign tourist. Police colonel Zorin is to save the work of art from the hands of the criminal.