Iris wilde als klein meisje al filmmaker worden. De afgelopen vijf jaar werkt ze als regisseur van een onsuccesvolle reality show. Iris ziet de mogelijkheid zichzelf te bewijzen wanneer ze de opdracht krijgt terug te keren naar haar geboortestadje Black Falls. In Black Falls staat een afgelegen gekkenhuis, waar men op gruwelijke wijze shocktherapie toepaste op de patiënten. Iris filmt binnenin het gekkenhuis en denkt terug aan de horrorfilmpjes die zij er als klein meisje met haar vrienden opnam. Op dit moment weet Iris nog niet hoeveel problemen haar te wachten staan...
Nee, helaas is The Purgation nog niet beschikbaar op Netflix in Nederland.
| Directing | Elaine Chu | Director |
| Writing | Elaine Chu | Writer |
| Production | Elaine Chu | Producer |
| Production | Ken Conklin | Executive Producer |
| Production | B.T. Moorer | Executive Producer |
| Production | Jeremy Cordy | Producer |
| Camera | John Hale | Director of Photography |
| Production | Brian Sounalath | Associate Producer |
| Production | Stephanie Pascaris | Producer |
| Production | Alicia Harris | Production Designer |
| Editing | Juliette Edwards | Editor |
| Sound | Marc Chester | Music |
| Costume & Make-Up | Sarah Creager | Costume Designer |
| Production | Stephanie Pascaris | Unit Production Manager |
| Directing | Matt Dority | First Assistant Director |
| Directing | Ginny Cheung | Second Assistant Director |
| Directing | Sandra Castro | Second Second Assistant Director |
| Camera | Adam Boggs | First Assistant Camera |
| Camera | Anthony Campuzano | Second Assistant Camera |
| Lighting | Joseph C. Petkwitz | Gaffer |
| Camera | Kevin B. Woodruff | Key Grip |
| Camera | Richard Humberto Pena | Grip |
| Camera | Anthony Prudenti | Grip |
| Sound | Neil Kimball | Production Sound Mixer |
| Sound | Cary Daniels | Sound Mixer |
| Sound | Lauren M. Womble | Sound Assistant |
| Directing | Jonathan T. Simon | Script Supervisor |
| Production | Nicole Sykes | Location Manager |
| Costume & Make-Up | Erin Blinn | Hair Designer |
| Costume & Make-Up | Erin Blinn | Makeup Designer |
| Costume & Make-Up | Erin Blinn | Special Effects Makeup Artist |
| Costume & Make-Up | Melinda Colburn | Assistant Costume Designer |
| Costume & Make-Up | Linda Martinez | Assistant Costume Designer |
| Costume & Make-Up | Jessica Johnston | Makeup & Hair Assistant |
| Art | Grant Hyde | Art Direction |
| Art | Jackie De Leon | Assistant Production Design |
| Art | Kerri Fernsworth | Set Dresser |
| Crew | Tom Walsh | Carpenter |
| Crew | Josh Suprenant | Carpenter |
| Art | Jade Law | Painter |
| Art | Natalie Swain | Painter |
| Production | Brian Kong | Production Assistant |
| Production | Chelsea Lutz | Production Assistant |
| Production | Nasaka Malimba | Production Assistant |
| Production | Lauren M. Womble | Production Assistant |
| Camera | Ginny Cheung | Set Photographer |
| Crew | Carolina Yuriar | Catering |
| Sound | Jake Walsh | Foley Artist |
| Visual Effects | Danny Kong | Visual Effects |
| Visual Effects | Eve Skylar | Visual Effects |
| Editing | Andrew R. Cohen | Assistant Editor |
| Editing | Justin Edwards | Assistant Editor |
| Editing | John Hale | Colorist |
| Crew | Sarovar Banka | Thanks |
| Crew | Walter Craig Boholst | Thanks |
| Crew | Dominic Chu | Thanks |
| Crew | Tim Collins | Thanks |
| Crew | Julien David | Thanks |
| Crew | Chris Eska | Thanks |
| Crew | Fred Garnica | Thanks |
| Crew | Reynaldo A. Garnica | Thanks |
| Crew | Maikiko James | Thanks |
| Crew | James Kao | Thanks |
| Crew | Brian Kong | Thanks |
| Crew | Nasaka Malimba | Thanks |
| Crew | Sachin Mehta | Thanks |
| Crew | Sudeep Mathur | Thanks |
| Crew | Michael Newton | Thanks |
| Crew | John Raposas | Thanks |
| Crew | Nacia Schreiner | Thanks |
| Crew | Brian Smith | Thanks |
| Crew | Noah Smith | Thanks |
| Crew | Michael Temple | Thanks |
| Crew | Ratana Therakulsathlt | Thanks |
| Crew | Marcello Vitanza | Thanks |
| Crew | Caroline Yeh | Thanks |
| Crew | Beejal Lakhavani | Thanks |
| Crew | Sanger Lee | Thanks |
