Ingrid and Martha were close friends in their youth, when they worked together at the same magazine. Ingrid went on to become an autofiction novelist while Martha became a war reporter, and they were separated by the circumstances of life. After years of being out of touch, they meet again in an extreme but strangely sweet situation.
Unfortunately the movie The Room Next Door is not yet available on HBO Max.
| Sound | Alberto Iglesias | Original Music Composer |
| Costume & Make-Up | Bina Daigeler | Costume Design |
| Editing | Teresa Font | Editor |
| Production | Agustín Almodóvar | Executive Producer |
| Production | Pedro Almodóvar | Producer |
| Directing | Pedro Almodóvar | Director |
| Writing | Pedro Almodóvar | Screenplay |
| Art | Inbal Weinberg | Production Design |
| Production | Geraldine Barón | Casting |
| Production | Salome Oggenfuss | Casting |
| Art | Inbal Weinberg | Art Direction |
| Art | Iker Elias | Set Decoration |
| Art | Miguel López Langa | Assistant Set Decoration |
| Costume & Make-Up | Manolo García | Hair Designer |
| Costume & Make-Up | Uxue Laguardia | Makeup Supervisor |
| Costume & Make-Up | Esther Liébana | Makeup Artist |
| Costume & Make-Up | Angie Johnson | Hair Supervisor |
| Costume & Make-Up | Morag Ross | Makeup Designer |
| Production | Danielle Mandel | Production Manager |
| Directing | Bogdana Orleanova | Third Assistant Director |
| Art | Pablo Buratti | Storyboard Artist |
| Art | Ana García de Salazar | Props |
| Art | Daniel Maldonado | Assistant Property Master |
| Art | Elsa Moya Vela | Property Master |
| Visual Effects | Male Menéndez | Visual Effects Producer |
| Camera | Luis Ruiz Arce | Additional Second Assistant Camera |
| Camera | Jordi Carrasco Fraile | Data Wrangler |
| Camera | Rachel Fedorkova | Second Assistant "A" Camera |
| Camera | Pepe Gay de Liébana | "B" Camera Operator |
| Crew | Igor Iglesias | Video Assist Operator |
| Lighting | Jason Jaeger | Electrician |
| Camera | Geoffrey Jean-Baptiste | Steadicam Operator |
| Camera | Chije Kang | Camera Trainee |
| Lighting | Javier Laporta | Lighting Technician |
| Camera | Raül Margalló | Second Assistant Camera |
| Camera | Ángel Martín-Álvarez | Digital Imaging Technician |
| Lighting | Jerad Molkenthin | Gaffer |
| Lighting | Sergio Morilla | Lighting Technician |
| Camera | Nico P. Pampín | Additional Second Assistant Camera |
| Camera | Marc Piera | First Assistant Camera |
| Lighting | Ana Portela Rodríguez | Best Boy Electric |
| Lighting | José Luis Rodríguez | Gaffer |
| Camera | David Stern | Key Grip |
| Camera | Zack Sainz | Digital Imaging Technician |
| Camera | Bayley Sweitzer | First Assistant "A" Camera |
| Camera | Juanjo Sánchez | Steadicam Operator |
| Camera | Guillermo Vazquez | First Assistant "B" Camera |
| Production | Iván Armesto | Extras Casting |
| Production | Gerard Gavaldà | Casting Assistant |
| Production | Basilio Rodríguez | Extras Casting Assistant |
| Costume & Make-Up | Fiorella Aller | Costumer |
| Costume & Make-Up | Natalie Arango | Costume Supervisor |
| Costume & Make-Up | Eudald Magri | Assistant Costume Designer |
| Costume & Make-Up | Fabian A. Martinez | Costumer |
| Costume & Make-Up | Rubén Martín García | Costume Coordinator |
| Editing | Mario Martínez Duque | Online Editor |
| Editing | Adam Moore | Colorist |
| Editing | Juan Ugarriza | Online Editor |
| Production | Bridget Dennin | Location Coordinator |
| Production | Eduardo García Alonso | Location Manager |
| Art | Matthew H. Wiesner | Location Scout |
| Directing | Yuyi Beringola | Script Supervisor |
| Production | Manolo Gago | Production Assistant |
| Writing | Sigrid Nunez | Novel |
| Sound | Sergio Burmann | Sound Mixer |
| Sound | Nacho Cordón | Foley Artist |
| Sound | Marc Gonell | Foley Artist |
| Sound | Anna Harrington | Supervising Sound Editor |
| Sound | Gustavo Suárez Lendoiro | Boom Operator |
| Sound | Alejandro López | Sound Designer |
| Sound | Marc Orts | Sound Re-Recording Mixer |
| Sound | Quim Reig | Foley Recordist |
| Sound | Juan Rubio Morales | Sound Assistant |
| Sound | Rubén Segura | Foley Recordist |
| Visual Effects | César Abades | Special Effects Supervisor |
| Crew | Diego Álvarez | Special Effects Technician |
| Crew | Oihane Abrisqueta Díaz | Visual Effects Editor |
| Crew | David Collantes Rodríguez | Visual Effects Editor |
| Visual Effects | Lara de Gracia | Visual Effects Producer |
| Visual Effects | Ana Belén Martín | Visual Effects Producer |
| Crew | Rafael Ayuso | Stunt Double |
| Editing | Chema Alba | Colorist |
| Production | Steve Grivno | Location Manager |
| Production | Abigail Heckel | Location Assistant |
| Production | James Kenny | Assistant Location Manager |
| Production | Taylor Bingham | Production Coordinator |
| Production | Danny Fey | Production Secretary |
| Production | Lauren Franco | Production Assistant |
| Production | Beatrix Herriott O'Gorman | Production Assistant |
| Production | Patricia Martín-Leyes | Production Assistant |
| Production | Alanna O'Leary | Production Assistant |
| Production | Jessica Pochek | Production Assistant |
| Production | Molly Wigglesworth | Production Assistant |
| Art | Damián Galán Álvarez | Set Designer |
| Art | Ana Martínez Fernández | Set Designer |
| Directing | Júlia Marcos Lázaro | Third Assistant Director |
| Directing | Kyle James Wright | Second Second Assistant Director |
| Production | Gador Camacho | Production Supervisor |
| Production | Luisella Fiorella | Assistant Production Coordinator |
| Production | César Pardiñas | Line Producer |
| Costume & Make-Up | Selmo del Campo | Hairstylist |
| Camera | Eduard Grau | Director of Photography |
