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 |
| Writing | Rodolphe Tissot | Writer |
| Writing | Olivier Volpi | Writer |
| Writing | Sylvain White | Writer |
| Writing | Gilles Paquet-Brenner | Writer |
| Production | Kevin DeWalt | Producer |
| Production | Jean-Charles Levy | Producer |
| Production | Clément Miserez | Producer |
| Production | Ingo Vollkammer | Producer |
| Production | Carmen Kotyk | Casting |
| Sound | Greg Biribauer | Music |
| Editing | Jackie Dzuba | Editor |
| Art | Bertrand Seitz | Production Design |
| Art | Sara McCudden | Art Direction |
| Art | Andrea Spakowski | Set Decoration |
| Costume & Make-Up | Cathy McComb | Costume Design |
| Camera | Karim Hussain | Director of Photography |
| Costume & Make-Up | Tamara Harrod | Key Hair Stylist |
| Costume & Make-Up | Tracy George | Key Makeup Artist |
| Production | Rhonda Baker | Production Manager |
| Art | Marianna Kyriakoulias | Art Department Coordinator |
| Art | Danny Scavuzzo | Construction Coordinator |
| Art | Norm Daschle | Property Master |
| Visual Effects | Paul Noël | Special Effects Supervisor |
| Visual Effects | Danielle Masters | Visual Effects Coordinator |
| Visual Effects | Paul Dion | Visual Effects Supervisor |
| Visual Effects | Colin Hubick | Visual Effects Supervisor |
| Production | Karina Davis | Casting |
| Production | Trenna Keating | Casting |
| Production | Kate Plantin | Casting |
| Directing | Shane B. Scott | Script Supervisor |
| Camera | Mark Dobrescu | Second Unit Director of Photography |
| Camera | Allan Feildel | Still Photographer |
| Lighting | Andrew Gordon | Gaffer |
| Lighting | Shawn Fulton | Rigging Gaffer |
| Camera | Matt Greenhough | Dolly Grip |
| Camera | Rob Parrell | Key Grip |
| Editing | Peter Armstrong | Digital Intermediate |
| Editing | Lee Hughes | Digital Intermediate |
| Editing | Trevor Lewis | Digital Intermediate |
| Editing | Tom Mayclim | Digital Intermediate |
| Editing | Dave Muscat | Digital Intermediate |
| Sound | Leon Wiegers | Boom Operator |
| Sound | Roger Roscoe | Boom Operator |
| Sound | Evan Rust | Dialogue Editor |
| Sound | Cal Harle | Foley |
| Sound | J. David Taylor | Foley |
| Sound | Jeff Smulan | Foley Editor |
| Sound | Jeff Hamon | Sound Re-Recording Mixer |
