Margreet Honig, eighty-four years old, is an internationally sought-after Dutch singing teacher. She teaches all over Europe and works with world-famous singers. She has developed her very own way of working.
| Directing | Stefan Haupt | Director |
| Writing | Stefan Haupt | Writer |
| Production | Stefan Haupt | Producer |
| Camera | Patrick Lindenmaier | Director of Photography |
| Camera | Giancarlo Moos | Director of Photography |
| Editing | Christof Schertenleib | Editor |
| Sound | Mourad Keller | Sound |
