Myortvyy sezon) is a 1968 Soviet spy film directed by Savva Kulish based on a screenplay by Aleksandr Shlepyanov and Vladimir Vajnshtok and featuring Donatas Banionis and Rolan Bykov.

A connection between Dr. Hass and the West German intelligence was killed at an airport in one of the European countries.

Encryption was discovered in the pocket of the murdered person for the purchase of raw material for mass production of RH gas.

The possibilities of gas are such that in small doses it stimulates the intellectual potential of a person, in large ones it turns them into a joyous idiot and a laborer-robot.

In 1944, Savushkin fled from a Nazi concentration camp, where Hass conducted his fatal experiments, turning people into meaningless animals.