Two militia officers are assigned to a museum in an undercover assignment to protect a valuable painting from an international group of art thieves.
Captain Stefan Berent
Małgorzata Sadecka
Wanda Szczęśniak
Lieutenant Katarzyna Rogalska
Professor Gawroński
Władysław Janas
Karol Wilczkiewicz
Marczak
Zientara
Commissioner Didot
Captain Półtorak
Colonel Wala
Militiaman
