
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)