Kazmierz Dziewanowicz's hobby is very strange. He collects people who were born on the 29th of February. One day he sees that in his collection there are two men with the same name, the same birth place, the same date of birth and the same parents. In the middle of the night somebody kills him. The Intelligence Agency begins investigation.
as Elżbieta Brylska
as Engineer Henryk Nowak
as Sergeant Jan Dziewanowicz
as Greengrocer Henryk Nowak
as Major Olecki
as Kazimierz Dziewanowicz
as Helena Pyrzyk
as Stefan
as Wacław Kaczmarek
as Major Bolesław Sarnicki
as Tomasz
as Kazimierz's Friend
as Grzegorz
as Staszek
as Sergeant Jagielski
as Hanka Michałko
as Minute-Taker (uncredited)
as Market Seller (uncredited)
as Plane Pilot (uncredited)
as Greengrocer's Neighbour (uncredited)
as Porter (uncredited)
as Tomczyk (uncredited)
as Pilot (uncredited)
as Bus Conductor (uncredited)
as Soldier unloading the Truck (uncredited)
as Soldier giving information to Olecki (uncredited)
as Kabera (uncredited)
as WSW Major (uncredited)
as Soldier woken up by Olecki (uncredited)
as WSW Agent (uncredited)
as (uncredited)
as Guard (uncredited)
as Lab Technician (uncredited)
as Dziewanowicz's Neighbour (uncredited)
