Ever since she was a little girl, Iris has wanted to be a filmmaker. For the last five years though, she's been trapped working in reality television, directing episodes for a series that's barely able to compete with Ghost Hunters. Iris sees her big chance to prove herself when she gets sent on assignment to her hometown of Black Falls, a small town harboring an abandoned insane asylum that has a dark history of excessive shock therapy. Filming inside the asylum brings back childhood memories for Iris, memories of sneaking into the asylum with her friends to shoot homemade horror movies. Little does Iris know, her life is about to imitate her art.
Unfortunately the movie The Purgation is not yet available on HBO Max.
| Production | Alicia Harris | Production Designer |
| Directing | Sandra Castro | Second Second Assistant Director |
| Production | Stephanie Pascaris | Producer |
| Costume & Make-Up | Sarah Creager | Costume Designer |
| Camera | Adam Boggs | First Assistant Camera |
| Editing | Juliette Edwards | Editor |
| Camera | Anthony Campuzano | Second Assistant Camera |
| Lighting | Joseph C. Petkwitz | Gaffer |
| Directing | Ginny Cheung | Second Assistant Director |
| Production | Stephanie Pascaris | Unit Production Manager |
| Sound | Marc Chester | Music |
| Directing | Matt Dority | First Assistant Director |
| Costume & Make-Up | Linda Martinez | Assistant Costume Designer |
| Crew | Josh Suprenant | Carpenter |
| Camera | Anthony Prudenti | Grip |
| Sound | Cary Daniels | Sound Mixer |
| Costume & Make-Up | Melinda Colburn | Assistant Costume Designer |
| Camera | Ginny Cheung | Set Photographer |
| Costume & Make-Up | Erin Blinn | Hair Designer |
| Art | Grant Hyde | Art Direction |
| Crew | Tom Walsh | Carpenter |
| Art | Natalie Swain | Painter |
| Production | Lauren M. Womble | Production Assistant |
| Costume & Make-Up | Erin Blinn | Special Effects Makeup Artist |
| Costume & Make-Up | Jessica Johnston | Makeup & Hair Assistant |
| Art | Jackie De Leon | Assistant Production Design |
| Production | Nasaka Malimba | Production Assistant |
| Camera | Kevin B. Woodruff | Key Grip |
| Camera | Richard Humberto Pena | Grip |
| Sound | Neil Kimball | Production Sound Mixer |
| Directing | Jonathan T. Simon | Script Supervisor |
| Costume & Make-Up | Erin Blinn | Makeup Designer |
| Art | Kerri Fernsworth | Set Dresser |
| Art | Jade Law | Painter |
| Production | Chelsea Lutz | Production Assistant |
| Production | Nicole Sykes | Location Manager |
| Sound | Lauren M. Womble | Sound Assistant |
| Production | Brian Kong | Production Assistant |
| Crew | Carolina Yuriar | Catering |
| Sound | Jake Walsh | Foley Artist |
| Editing | John Hale | Colorist |
| Editing | Andrew R. Cohen | Assistant Editor |
| Visual Effects | Eve Skylar | Visual Effects |
| Visual Effects | Danny Kong | Visual Effects |
| Editing | Justin Edwards | Assistant Editor |
| Crew | Sarovar Banka | Thanks |
| Crew | Fred Garnica | Thanks |
| Crew | Maikiko James | Thanks |
| Crew | Nacia Schreiner | Thanks |
| Crew | Beejal Lakhavani | Thanks |
| Crew | Dominic Chu | Thanks |
| Crew | Caroline Yeh | Thanks |
| Crew | Nasaka Malimba | Thanks |
| Crew | Marcello Vitanza | Thanks |
| Crew | Julien David | Thanks |
| Crew | Noah Smith | Thanks |
| Crew | Sudeep Mathur | Thanks |
| Crew | Sanger Lee | Thanks |
| Crew | Chris Eska | Thanks |
| Crew | Reynaldo A. Garnica | Thanks |
| Crew | James Kao | Thanks |
| Crew | Walter Craig Boholst | Thanks |
| Crew | John Raposas | Thanks |
| Crew | Michael Newton | Thanks |
| Crew | Tim Collins | Thanks |
| Crew | Sachin Mehta | Thanks |
| Crew | Brian Kong | Thanks |
| Crew | Brian Smith | Thanks |
| Crew | Michael Temple | Thanks |
| Crew | Ratana Therakulsathlt | Thanks |
| Directing | Elaine Chu | Director |
| Production | Elaine Chu | Producer |
| Camera | John Hale | Director of Photography |
| Writing | Elaine Chu | Writer |
| Production | B.T. Moorer | Executive Producer |
| Production | Jeremy Cordy | Producer |
| Production | Ken Conklin | Executive Producer |
| Production | Brian Sounalath | Associate Producer |
