A stowaway sneaks aboard a ship departing on a cruise down the Vistula River. The captain takes him for a Communist Party cultural coordinator and the intruder gladly adapts to his new role, immediately setting to work at manipulating the passengers and crew into silly and vaguely humiliating games. Before long, Tym has got everyone under his thumb and created his own comedic dictatorship.

Stanisław Tym
as KO Instructor

Jolanta Lothe
as Young Girl

Wanda Stanisławska-Lothe
as Ms. Mamoń

Jerzy Dobrowolski
as Instructor's Friend

Andrzej Dobosz
as Philosopher

Feridun Erol
as Seaman

Jan Himilsbach
as Sidorowski

Jerzy Karaszkiewicz
as Angler

Zdzisław Maklakiewicz
as Engineer Mamoń

Maciej Michalak
as Passenger