On their way to an afternoon on the lake, husband and wife Andrzej and Krystyna nearly run over a young hitchhiker. Inviting the young man onto the boat with them, Andrzej begins to subtly torment him; the hitchhiker responds by making overtures toward Krystyna. When the hitchhiker is accidentally knocked overboard, the husband's panic results in unexpected consequences.
Unfortunately the movie Knife in the Water is not yet available on Disney Plus.
| Writing | Jerzy Skolimowski | Screenplay |
| Writing | Jakub Goldberg | Screenplay |
| Camera | Jerzy Lipman | Director of Photography |
| Writing | Jerzy Skolimowski | Dialogue |
| Writing | Roman Polanski | Screenplay |
| Directing | Roman Polanski | Director |
| Editing | Halina Prugar-Ketling | Editor |
| Sound | Krzysztof Komeda | Original Music Composer |
| Directing | Jakub Goldberg | Assistant Director |
| Directing | Andrzej Kostenko | Assistant Director |
| Camera | Jerzy Szurowski | Assistant Camera |
| Directing | Maria Pietrzak | Assistant Director |
| Camera | Józef Nasiadka | Assistant Camera |
| Writing | Agnieszka Osiecka | Lyricist |
| Camera | Julian Magda | Assistant Camera |
| Sound | Jerzy Szawłowski | Sound Assistant |
| Costume & Make-Up | Zdzislaw Papierz | Makeup Artist |
| Camera | Andrzej Gronau | Camera Operator |
| Art | Bolesław Kamykowski | Production Design |
| Editing | Maria Karpowicz | Assistant Editor |
| Production | Stanisław Zylewicz | Production Manager |
| Production | Jerzy Laskowski | Assistant Production Manager |
| Sound | Halina Paszkowska | Sound Designer |
