An elderly man returns to Poland to find his long-lost son, missing since World War II. In his quest the man is forced to contemplate the elusive and coded nature of truth itself.
| Actor | Role |
|---|---|
 Jan KreczmarTadeusz | Tadeusz |
 Zbigniew CybulskiMaciek | Maciek |
 Ignacy GogolewskiDoctor Zygmunt Gross | Doctor Zygmunt Gross |
 Irena HoreckaHelena Kunicka | Helena Kunicka |
 Janusz KłosińskiBookstore Manager | Bookstore Manager |
 Barbara KrafftównaJadwiga | Jadwiga |
 Wacław KowalskiMadeja | Madeja |
 Kazimierz OpalińskiPieczara | Pieczara |
 Władysław DewoynoTrain Waiter | Train Waiter |
 Adam DzieszyńskiHotel Receptionist | Hotel Receptionist |
 Janusz GajosMonk | Monk |
| SStefania KołodziejczykWaitress | Waitress |
 Irma KozłowskaCaretaker | Caretaker |
 Zofia MerleWacka | Wacka |
 Irena OrskaNeighbour | Neighbour |
 Jadwiga SkupnikPhone Operator | Phone Operator |
 Irena EichlerównaZofia | Zofia |
 Leopold Rene NowakGestapo Officer / Man on the Street (uncredited) | Gestapo Officer / Man on the Street (uncredited) |
 Kazimierz OstrowiczTrain Conductor (uncredited) | Train Conductor (uncredited) |