At the peak of his mid-life crisis, Swiss filmmaker Stefan Keller is forced to take on a side job out of financial necessity. Consequently, he finds himself travelling throughout Switzerland as an anonymous youth hostel tester just before Christmas. Thus begins his odyssey: Stefan is in desperate need of a story; he struggles with his failed relationship; and chance acquaintances force him to face the meaning of his existence.
Unfortunately the movie Wintergast is not yet available on HBO Max.
| Directing | Andy Herzog | Director |
| Directing | Matthias Günter | Director |
| Writing | Matthias Günter | Writer |
| Writing | Andy Herzog | Writer |
| Production | Matthias Günter | Producer |
| Production | Andy Herzog | Producer |
| Sound | John Gürtler | Music |
| Sound | Jan Miserre | Music |
| Camera | Matthias Günter | Director of Photography |
| Editing | Matthias Günter | Editor |
| Editing | Kaya Inan | Editor |
