Two speleologists, Esteban and Pedro, travel to a mountainous area located in northern Spain, near a small village, to study a newly discovered cave and determine if it is of scientific interest, while Gabi, Esteban's wife, awaits their return on a lonely road at the foot of the mountain.
| Directing | Jorge Sánchez-Cabezudo | Director |
| Production | Enrique González Macho | Producer |
| Art | Diego Modino | Production Design |
| Camera | Gorka Rotaeche | Steadicam Operator |
| Production | Geli Albaladejo | Casting |
| Sound | Raúl Lasvignes | Sound Editor |
| Sound | Delphine Mathieu | Music Supervisor |
| Art | Alberto Sánchez-Cabezudo | Production Design |
| Camera | Ángel Iguacel | Director of Photography |
| Editing | Pedro Ribeiro | Editor |
| Camera | David Acereto | Camera Operator |
| Directing | Jesús Ruiz | Script Supervisor |
| Sound | Amélie de Chassey | Music Supervisor |
| Production | Rafael Álvarez | Production Manager |
| Sound | Manuel Corrales | Foley Artist |
| Crew | Antonio Inglott | Digital Effects Supervisor |
| Crew | José Luis Garci | Thanks |
| Sound | Vasco Pedroso | Sound Recordist |
| Production | Michaël Gentile | Co-Producer |
| Writing | Jorge Sánchez-Cabezudo | Screenplay |
| Directing | Javier Soto | Assistant Director |
| Camera | Lucía Ybarra | Still Photographer |
| Crew | Curro Muñoz | Digital Effects Supervisor |
| Production | Luís Galvão Teles | Co-Producer |
| Directing | Eva Ungría | Second Assistant Director |
| Costume & Make-Up | Silvia García Bravo | Costume Designer |
| Production | Belén Bernuy | Executive Producer |
| Crew | Marina de Mendialdua | Stunt Coordinator |
| Lighting | Dimas Almendros Blas | Gaffer |
| Sound | Carlos Garrido | Sound Mixer |
| Sound | Krishna Levy | Original Music Composer |
| Costume & Make-Up | Lola López | Makeup Designer |
| Crew | Montxo Armendáriz | Thanks |
| Costume & Make-Up | Itziar Arrieta | Hair Designer |
| Art | Jaime Anduiza | Property Master |
| Production | Sandra Hermida | Production Director |
