Laura and Mari are meeting with a medium in the candlelit living room of their new house. The woman asks them about the reason for their call and the girls put her in context. They then begin to explain to her the paranormal events they have experienced since moving into the house: they hear a hissing sound through electrical appliances, a sound they believe to be coming from a hostile and threatening spirit, as they have already suffered attacks from the entity. The woman listens to them attentively before conducting a séance to contact the spirits and find out what is happening in that place.
Unfortunately the movie El Silbido is not yet available on Disney Plus.
| Writing | Jose Cabeza | Writers' Assistant |
| Crew | Marina Martín de Paz | Script |
| Production | Diego Aguado Rodríguez | Executive Producer |
| Sound | Audionautix | Music |
| Sound | Esther Pascual | Sound Recordist |
| Editing | Carlos Verdugo | Colorist |
| Directing | Diego Aguado Rodríguez | Director |
| Sound | Megan McDuffee | Music |
| Editing | Diego Aguado Rodríguez | Editor |
| Art | Carlota Martínez | Art Direction |
| Camera | Carlos Verdugo | Camera Operator |
| Costume & Make-Up | Marina Martín de Paz | Makeup & Hair |
| Production | Esther Pascual | Casting |
| Costume & Make-Up | Marina Martín de Paz | Dresser |
| Crew | Carlota Martínez | Script |
| Sound | Esther Pascual | Sound Editor |
| Camera | Carlos Verdugo | Director of Photography |
| Art | Esther Pascual | Location Scout |
| Crew | LUCÍA CABALLERO | Script |
| Camera | Diego Aguado Rodríguez | Director of Photography |
| Sound | Esther Pascual | Sound |
| Writing | Diego Aguado Rodríguez | Writer |
