Two militia officers are assigned to a museum in an undercover assignment to protect a valuable painting from an international group of art thieves.
Andrzej Łapicki
as Captain Stefan Berent
Kalina Jędrusik
as Małgorzata Sadecka
Maria Wachowiak
as Wanda Szczęśniak
Alicja Wyszyńska
as Lieutenant Katarzyna Rogalska
Wieńczysław Gliński
as Professor Gawroński
Tadeusz Kondrat
as Władysław Janas
Ryszard Pietruski
as Karol Wilczkiewicz
Franciszek Pieczka
as Marczak
Wojciech Pokora
as Zientara
Adam Pawlikowski
as Commissioner Didot
Zbigniew Józefowicz
as Captain Półtorak
Leon Pietraszkiewicz
as Colonel Wala
