Paco, a middle-class young man, tells his lover the shady story of his cousin Montse, a social worker.
Unfortunately the movie La oscura historia de la prima Montse is not yet available on HBO Max.
| Camera | Tomàs Pladevall | Director of Photography |
| Writing | Jordi Cadena | Screenplay |
| Costume & Make-Up | Ángeles Puig | Makeup Artist |
| Directing | Jordi Cadena | Director |
| Writing | Juan Marsé | Novel |
| Art | Ramon Ivars | Set Decoration |
| Writing | Ramón Font | Screenplay |
| Sound | Carles Santos | Original Music Composer |
| Costume & Make-Up | Tona Coromina | Costume Designer |
| Camera | Cristina Solé | Still Photographer |
| Art | Francisco Rodríguez | Property Master |
| Lighting | Fernando Moreno | Gaffer |
| Costume & Make-Up | Ilga Penezis | Seamstress |
| Directing | Anne Settimó | Script Supervisor |
| Lighting | Antonio Felices | Gaffer |
| Camera | Alberto Prous | Assistant Camera |
| Editing | Emilio Rodríguez | Editor |
| Production | Pepón Coromina | Executive Producer |
| Production | José Guerrero | Production Assistant |
| Costume & Make-Up | Joaquín Navarro | Assistant Makeup Artist |
| Directing | Ángel G. Gauna | Assistant Director |
| Production | Modesto Pérez Redondo | Production Director |
| Camera | Jaume Peracaula | Camera Operator |
| Editing | Anastasi Rinos | Assistant Editor |
| Production | José Luis Amposta | Executive Producer |
| Production | José Antonio Pérez Giner | Executive Producer |
