Marta used to be a recognized and successful psychic, but after a dramatic experience, she loses faith in her gift and develops agoraphobia. She couldn't see the devilish side of her rapper, Mario, and now, Marta is afraid that Mario will stalk her again. As soon as she released from the asylum, she moves to Monica's uncle apartment. There, she feels safe. But soon, she has trouble with her crazy neighbors. And if this wasn't enough, a spectrum starts to haunt her, making her life impossible. Marta will have to fight against all these difficulties and manage to get her gift back before Mario finds her.
Unfortunately the movie Demon Inside is not yet available on HBO Max.
| Directing | Alfonso Pineda Ulloa | Director |
| Writing | Alfonso Pineda Ulloa | Writer |
| Sound | Alex de Icaza | Music |
| Writing | Juan Felipe Orozco | Screenplay |
| Writing | Carlos Esteban Orozco | Screenplay |
| Production | Manolo Cardona | Executive Producer |
| Production | Santiago Garcia Galvan | Producer |
| Production | Alex García | Producer |
| Production | Joceline Hernández | Executive Producer |
| Production | Joceline Hernández | Line Producer |
| Production | Eugenio Villamar | Line Producer |
| Production | Eugenio Villamar | Executive Producer |
| Production | Araceli Velázquez | Executive Producer |
| Production | Andrés Tagliavini | Executive Producer |
| Production | Daniel Posada | Executive Producer |
| Production | Rodolfo Marquez | Executive Producer |
| Crew | Marc Bellver | Cinematography |
| Crew | Erick Bongcam | Compositors |
| Crew | Alejandro de Icaza | Compositors |
| Sound | Dan Zlotnik | Music |
| Editing | Marcelino Islas Hernández | Editor |
| Editing | Jorge Macaya | Editor |
| Art | Bernardo Trujillo | Production Design |
| Art | Noyolotl Orrante Mata | Set Decoration |
| Costume & Make-Up | Atzin Hernández | Costume Design |
| Costume & Make-Up | Tacho | Makeup Artist |
| Costume & Make-Up | César Perlop | Makeup Artist |
| Crew | César Perlop | Makeup Effects |
| Costume & Make-Up | Jimena Cuarón | Makeup Artist |
| Costume & Make-Up | Ariel León Castro | Makeup Artist |
| Production | Omar Arias González | Unit Production Manager |
| Crew | Vanessa Hernández | Post Production Supervisor |
| Crew | Carlos A. Morales | Post Production Supervisor |
| Directing | Berenice Gil | Second Assistant Director |
| Directing | Carlos Manzo | Second Assistant Director |
| Crew | Gerard Mates | Second Unit |
| Art | Mariana Aceves | Assistant Art Director |
| Crew | Diego Suárez Groult | Graphic Novel Illustrator |
| Sound | José E. Caldararo | Foley |
| Sound | Alejandro de Icaza | Sound Re-Recording Mixer |
| Sound | Alejandro de Icaza | Supervising Sound Editor |
| Sound | Daniel Douglass | ADR Editor |
| Sound | Bechen de Loredo | Foley Editor |
| Sound | Axel Muñoz | Sound Recordist |
| Sound | John Sawa | Sound Designer |
| Sound | John Sawa | Sound Effects Editor |
| Editing | Enrique Fernández Tanco | Dialogue Editor |
| Visual Effects | Edgardo Mejia | Special Effects Supervisor |
| Visual Effects | Omar Rocha | Lead Character Designer |
| Crew | Jorge de Jesús Pérez Alba | Lighting Camera |
| Visual Effects | Gustavo Bellón | Digital Compositors |
| Visual Effects | Jose C. Garcia de Letona | Visual Effects Producer |
| Production | Juan R. González Frank | Production Coordinator |
| Visual Effects | Daniela Cortez Güendulain | Digital Compositors |
| Visual Effects | Octavio Mancilla | Digital Compositors |
| Visual Effects | Edgardo Mejia | Visual Effects Producer |
| Visual Effects | Gabriela Olmedo | Visual Effects Producer |
| Crew | Jorge de Jesús Pérez Alba | Digital Producer |
| Crew | Julian Bucio | Stunt Coordinator |
| Crew | César René Vigné | Stunts |
| Lighting | Edgar Ambriz Espinoza | Gaffer |
| Camera | María Grinda | Still Photographer |
| Camera | Fernando Hernández | First Assistant Camera |
| Camera | Jordi de Planell | Camera Operator |
| Editing | Salvador Flores | Assistant Editor |
| Editing | Melanie Haslam | Assistant Editor |
| Production | Claudia Mera | Production Coordinator |
| Production | Víctor Solorio | Location Manager |
| Sound | Alejandro de Icaza | Musician |
| Crew | Sergio Galicia | Transportation Captain |
| Crew | Ricardo Díaz Avilés | Transportation Coordinator |
| Crew | Dan Carrillo Levy | Thanks |
| Production | Dino Villegas | Production Coordinator |
| Production | Jacobo Pineda | Production Accountant |
| Production | Martha Naranjo Sandoval | Assistant Production Manager |
| Production | Alejandra Gonzalez-Reygadas | Production Manager |
| Production | Alejandra Gonzalez-Reygadas | Assistant Production Coordinator |
| Directing | Eva Ruiz de Chávez | Script Supervisor |