A teenager's world is shattered when her mother marries the father of her boyfriend.
Unfortunately the movie The Lake of Mysteries is not yet available on HBO Max.
| Directing | Jan Batory | Director |
| Sound | Andrzej Kurylewicz | Original Music Composer |
| Camera | Mieczysław Jahoda | Director of Photography |
| Editing | Roman Kolski | Editor |
| Art | Zdzisław Kielanowski | Production Design |
| Costume & Make-Up | Hanna Morawiecka | Costume Design |
| Writing | Krystyna Siesicka | Novel |
| Writing | Jan Batory | Screenplay |
| Writing | Krystyna Siesicka | Screenplay |
| Directing | Zbigniew Niemczynowski | First Assistant Director |
| Directing | Ewa Andrzejewska | Assistant Director |
| Directing | Barbara Dzień-Ciemnołońska | Assistant Director |
| Camera | Wladyslaw Nagy | Camera Operator |
| Camera | Julian Magda | Assistant Camera |
| Camera | Mieczysław Sitarz | Assistant Camera |
| Art | Elżbieta Karwańska | Assistant Production Design |
| Sound | Andrzej Kurylewicz | Musician |
| Sound | Piotr Marczewski | Music Consultant |
| Sound | Ryszard Patkowski | Sound |
| Sound | Zdzisław Dominiak | Sound Assistant |
| Editing | Mira Stankowa | Assistant Editor |
| Costume & Make-Up | Zbigniew Dobracki | Makeup Artist |
| Production | Jerzy Rutowicz | Production Manager |
| Production | Jerzy Ciemnolonski | Assistant Production Manager |
| Production | Zbigniew Olszewski | Assistant Production Manager |
| Production | Jerzy Moniak | Assistant Production Manager |