A Scotland Yard officer investigates the mysterious disappearance of a series of corpses. Based on the novel by Stanisław Lem.
Is The Investigation on Netflix? Unfortunately the movie The Investigation is not yet available on Netflix.
| Writing | Stanisław Lem | Novel |
| Directing | Marek Piestrak | Director |
| Sound | Włodzimierz Nahorny | Original Music Composer |
| Camera | Edward Kłosiński | Director of Photography |
| Writing | Andrzej Kotkowski | Screenplay |
| Writing | Marek Piestrak | Screenplay |
| Production | Kazimierz Sioma | Assistant Production Manager |
| Production | Janusz Wojtowicz | Production Coordinator |
| Production | Mirosław Migurski | Production Coordinator |
| Production | Grzegorz Woźniak | Production Manager |
| Costume & Make-Up | Zdzislawa Namyslaw | Makeup Artist |
| Art | Jerzy Groszang | Production Design |
| Sound | Zbigniew Przygodzki | Sound Assistant |
| Costume & Make-Up | Irena Włodarczyk | Costume Assistant |
| Editing | Aurelia Rut | Assistant Editor |
| Editing | Alina Faflik | Editor |
| Sound | Jerzy Wroński | Sound |
| Art | Eugeniusz Kapelak | Assistant Production Design |
| Art | Andrzej Rafał Waltenberger | Assistant Production Design |
| Sound | Włodzimierz Nahorny | Conductor |
| Costume & Make-Up | Wiesława Starska | Costume Design |
| Directing | Witold Holtz | First Assistant Director |
| Directing | Andrzej Perz | Assistant Director |
| Directing | Andrzej Wohl | Assistant Director |
| Directing | Teresa Olszewska | Assistant Director |
| Camera | Józef Letkier | Assistant Camera |
| Camera | Ludwik Stanisławski | Assistant Camera |
| Camera | Jacek Malipan | Camera Operator |
