After the body of a young woman is recovered from Lake Mattsee, the two cops not only face a major professional challenge that takes them into the dark past, but also come into contact with Mattsee's dark history and reach their limits privately.
Unfortunately the movie Dunkle Wasser is not yet available on HBO Max.
| Directing | Arman T. Riahi | Director |
| Production | Florian Gebhardt | Producer |
| Editing | Lisa Zoe Geretschläger | Editor |
| Camera | Anna Hawliczek | Director of Photography |
| Camera | Valerian Karl | Dolly Grip |
| Visual Effects | Felix Pichler | Visual Effects |
| Crew | Sabine Weber | Commissioning Editor |
| Sound | Bernhard Zorzi | Sound Designer |
| Camera | Emanuel Köll | First Assistant Camera |
| Crew | Daniel Blum | Commissioning Editor |
| Directing | Christoph Becker | First Assistant Director |
| Art | Attila Plangger | Production Design |
| Production | Petra Maier | Unit Manager |
| Writing | Arman T. Riahi | Co-Writer |
| Sound | Kai Schoormann | Music Supervisor |
| Art | Julia Oberndorfinger | Production Design |
| Sound | Claus Benischke | Sound |
| Editing | Lee Niederkofler | Color Grading |
| Production | Gregor Schmalix | Producer |
| Costume & Make-Up | Monika Buttinger | Costume Designer |
| Directing | Rosanna Rau | Continuity |
| Production | Helmut Lehner | Line Producer |
| Costume & Make-Up | Tünde Kiss-Benke | Makeup Artist |
| Production | Marion Rossmann | Casting |
| Crew | David Handl | Post Production Supervisor |
| Writing | Arash T. Riahi | Co-Writer |
| Sound | Ingo Pusswald | Sound Mixer |
| Lighting | Alex Sprenger | Gaffer |
| Crew | Andreas Bössner | Special Effects |
| Sound | Karwan Marouf | Original Music Composer |
| Production | Matyas Mohos | Unit Manager |
| Production | Kurt Werner Krusche | Production Manager |
| Costume & Make-Up | Judith Kröher | Makeup Artist |
| Art | Jana Maja Druskovic | Property Master |
| Art | Sebastian Kubisch | Standby Property Master |
| Directing | Arash T. Riahi | Director |
| Writing | Ralph Werner | Writer |
