220 years after its "birth", 40 years after its theft, 22 years after its reappearance and 18 years after its second disappearance, two filmmakers follow the trail of the "unspeakable" Unspunnenstein.
Unfortunately the movie Le syndrome d'Unspunnen is not yet available on HBO Max.
| Writing | Robin Erard | Writer |
| Directing | Robin Erard | Director |
| Writing | Karine Sudan | Writer |
| Writing | Samuel Chalard | Writer |
| Sound | Samuel Chalard | Sound |
| Camera | Robin Erard | Director of Photography |
| Editing | Karine Sudan | Editor |
| Directing | Samuel Chalard | Director |
| Sound | Valentin Faivre | Music |
| Production | Samuel Chalard | Producer |
| Camera | Patrick Tresch | Director of Photography |
| Sound | Stéphane Mercier | Music |
