Having finally secured her first assignment from her family's demolition business, Sam Walczak is sent to supervise the destruction of an apartment house, only to discover a group of tenants still living in the condemned building. One such tenant, Jimmy, tells Sam an urban legend about a serial murderer who used to live in the building and entomb his victims in the walls. What's worse, the dead are believed to still harass the residents to this day.
Unfortunately the movie Walled In is not yet available on HBO Max.
| Directing | Gilles Paquet-Brenner | Director |
| Production | Jean-Charles Levy | Producer |
| Production | Clément Miserez | Producer |
| Sound | Greg Biribauer | Music |
| Production | Ingo Vollkammer | Producer |
| Art | Andrea Spakowski | Set Decoration |
| Editing | Jackie Dzuba | Editor |
| Writing | Gilles Paquet-Brenner | Writer |
| Production | Carmen Kotyk | Casting |
| Writing | Olivier Volpi | Writer |
| Art | Sara McCudden | Art Direction |
| Writing | Rodolphe Tissot | Writer |
| Production | Kevin DeWalt | Producer |
| Art | Bertrand Seitz | Production Design |
| Writing | Sylvain White | Writer |
| Costume & Make-Up | Cathy McComb | Costume Design |
| Directing | Shane B. Scott | Script Supervisor |
| Production | Kate Plantin | Casting |
| Costume & Make-Up | Tamara Harrod | Key Hair Stylist |
| Costume & Make-Up | Tracy George | Key Makeup Artist |
| Production | Rhonda Baker | Production Manager |
| Production | Karina Davis | Casting |
| Production | Trenna Keating | Casting |
| Art | Norm Daschle | Property Master |
| Visual Effects | Paul Dion | Visual Effects Supervisor |
| Art | Danny Scavuzzo | Construction Coordinator |
| Visual Effects | Danielle Masters | Visual Effects Coordinator |
| Camera | Karim Hussain | Director of Photography |
| Art | Marianna Kyriakoulias | Art Department Coordinator |
| Visual Effects | Paul Noël | Special Effects Supervisor |
| Visual Effects | Colin Hubick | Visual Effects Supervisor |
| Camera | Allan Feildel | Still Photographer |
| Camera | Mark Dobrescu | Second Unit Director of Photography |
| Sound | J. David Taylor | Foley |
| Lighting | Andrew Gordon | Gaffer |
| Editing | Lee Hughes | Digital Intermediate |
| Sound | Jeff Smulan | Foley Editor |
| Editing | Peter Armstrong | Digital Intermediate |
| Sound | Jeff Hamon | Sound Re-Recording Mixer |
| Camera | Rob Parrell | Key Grip |
| Editing | Tom Mayclim | Digital Intermediate |
| Editing | Dave Muscat | Digital Intermediate |
| Sound | Leon Wiegers | Boom Operator |
| Sound | Cal Harle | Foley |
| Lighting | Shawn Fulton | Rigging Gaffer |
| Camera | Matt Greenhough | Dolly Grip |
| Editing | Trevor Lewis | Digital Intermediate |
| Sound | Roger Roscoe | Boom Operator |
| Sound | Evan Rust | Dialogue Editor |
