Once before, the ravishing lake mermaid Undine has warned her lover Raoul. Their humid-romantic fairy-tale love is in danger because Raoul's brother wants to destroy the pristine mountain lake idyll with an ambitious hotel project. Undine defends her paradise. She is alluring, but also perverse and unpredictable. She can give a lot of love, but she can also kill.
Unfortunately the movie Undine is not yet available on HBO Max.
| Art | Udo Karohl | Art Department Manager |
| Crew | Maria Lusia Pino | Special Effects |
| Costume & Make-Up | Sibilla Pavenstedt | Costume Design |
| Sound | Joseph Hölderle | Music |
| Editing | Eckhart Schmidt | Editor |
| Production | Eckhart Schmidt | Producer |
| Writing | Eckhart Schmidt | Writer |
| Production | Susann Kristin Friedrich | Unit Manager |
| Camera | Michael Praun | Clapper Loader |
| Production | Karl Margraf | Production Manager |
| Camera | Philipp Geigel | Assistant Camera |
| Sound | Michael Kranz | Sound Mixer |
| Camera | Anette Haellmigk | Assistant Camera |
| Sound | Angelika Krämer | Dialogue Editor |
| Production | Anja Schmidt-Zäringer | Production Manager |
| Directing | Werner Kiefer | Continuity |
| Production | Edith Götsch | Unit Manager |
| Camera | Ronald Simoneit | Still Photographer |
| Editing | Andreas Treske | Assistant Editor |
| Sound | Albrecht Harms | Sound Recordist |
| Costume & Make-Up | Susanne Kalwa | Wardrobe Designer |
| Directing | Eckhart Schmidt | Director |
| Camera | Bernd Neubauer | Director of Photography |
