Anna and Christian Instrupp are a happy and childless marriage. They have a farm of apple production. But their lives are disrupted when the Anna's illegitimate daughter, Ines Arnold, writes a letter to her where she tells him that his adoptive parents have died and that she would like to know.
Unfortunately the movie The Secret of Anna is not yet available on HBO Max.
| Directing | Jan Ruzicka | Director |
| Writing | Sophia Krapoth | Screenplay |
| Writing | Sophia Krapoth | Story |
| Production | Sabine Timmermann | Producer |
| Production | Sibylle Maddauss | Line Producer |
| Sound | Carsten Bohn | Music |
| Crew | Michael Tötter | Cinematography |
| Editing | Marcel Peragine | Editor |
| Production | Esther Klostermann | Casting |
| Art | Gabriele Wolff | Production Design |
| Costume & Make-Up | Wiebke Kratz | Costume Design |
| Directing | Elisabeth Hagemann | Assistant Director |
