Heiner Goebbels, an eclectic composer who, in his fifty-year career, has experimented with everything, is also the main figure in this film, which goes over the creative process that led him to conceive A House of Call, his latest symphony.
| Directing | Giulio Boato | Director |
| Writing | Giulio Boato | Writer |
| Camera | Giulio Boato | Director of Photography |
| Editing | Giulio Boato | Editor |
| Art | Giulio Boato | Art Direction |
| Sound | Lorenzo Danesin | Sound |
| Production | Laura Belloni | Producer |
| Production | Laura Belloni | Executive Producer |
| Production | Louise Hentgen | Producer |
| Production | Tiphaine Robion | Producer |
| Production | Friedemann Hottenbacher | Producer |
| Production | Gregor Streiber | Producer |