Italy, March 1980. César travels to the ruins of Pompeii with the extravagant intention of recording psychophonies, supernatural echoes of the great eruption of Mount Vesuvius that destroyed the city in the 1st century, but he does not succeed. However, on one of the tapes a strange phrase, much more recent, is recorded, words that César has already heard somewhere…
| Directing | Samuel Alarcón | Director |
| Writing | Juan Pablo Heras | Co-Writer |
| Production | Juan del Valle | Researcher |
| Visual Effects | Samuel Alarcón | Visual Effects Supervisor |
| Sound | Mitsuo Nakata | Sound Recordist |
| Art | Víctor Castro | Graphic Designer |
| Crew | Roberto Rossellini | In Memory Of |
| Writing | Samuel Alarcón | Writer |
| Crew | Chema Delgado | Post Production Supervisor |
| Production | Samuel Alarcón | Producer |
| Editing | Héctor Rodrigues | Editor |
| Camera | Diego Morgan | Camera Operator |
| Production | José Cabrera Betancort | Production Manager |
| Directing | Javier Ribas García | Assistant Director |
| Art | Samuel Alarcón | Art Direction |
| Crew | Renzo Rossellini | Thanks |
| Sound | Génesis Candela | Sound Recordist |
| Camera | Javier Cardenete | Still Photographer |
| Production | Viridiana Rotondi | Researcher |
| Visual Effects | Jorge García Velallos | Visual Effects |
| Directing | Lara Blanes Mencías | Assistant Director |
| Camera | Javier Cardenete | Director of Photography |
| Sound | Eneko Vadillo | Original Music Composer |
| Crew | Celso Arenal | Post Production Supervisor |
| Production | Anna Marinetti | Researcher |
| Writing | Mercedes Cebrián | Co-Writer |
