De dag waarop hun vader hun moeder vermoordde, verdwenen de zusjes Victoria en Lilly spoorloos in de bossen. Vijf lange jaren hebben hun oom Lucas en zijn vriendin, Annabel, radeloos naar hen lopen zoeken. Maar wanneer de kinderen uiteindelijk levend in een vervallen hut gevonden worden, vraagt het koppel zich af of de meisjes wel de enige gasten zijn die ze in hun huis hebben verwelkomd.
| Production | J. Miles Dale | Producer |
| Production | Barbara Muschietti | Producer |
| Sound | Fernando Velázquez | Original Music Composer |
| Editing | Michele Conroy | Editor |
| Art | Anastasia Masaro | Production Design |
| Costume & Make-Up | Luis Sequeira | Costume Design |
| Directing | Andy Muschietti | Director |
| Production | Guillermo del Toro | Executive Producer |
| Production | Robin D. Cook | Casting |
| Crew | Alison Reid | Stunts |
| Lighting | Doug Reid | Best Boy Electric |
| Art | Elis Y. Lam | Art Direction |
| Art | Patricia Cuccia | Set Decoration |
| Art | Kari Measham | Set Decoration Buyer |
| Art | Andrij Molodecky | Set Dresser |
| Art | John 'Butch' Rose | Set Dresser |
| Sound | Greg Chapman | Sound Re-Recording Mixer |
| Sound | Alfredo Díaz | Sound Effects Editor |
| Sound | Allan Fung | Supervising Sound Editor |
| Sound | Gabriel Gutiérrez | Sound Designer |
| Sound | Marc Orts | Sound Re-Recording Mixer |
| Costume & Make-Up | Suzanne Aplin | Costume Supervisor |
| Crew | Dana Howes | Transportation Coordinator |
| Writing | Andy Muschietti | Story |
| Writing | Andy Muschietti | Screenplay |
| Writing | Barbara Muschietti | Story |
| Writing | Barbara Muschietti | Screenplay |
| Writing | Neil Cross | Screenplay |
| Crew | Jeffrey Cassidy | Video Assist Operator |
| Camera | Antonio Riestra | Director of Photography |
| Production | Javier Aller | Production Assistant |
| Visual Effects | Michael Rice | Visual Effects |
| Visual Effects | Mike Borrett | Visual Effects Production Manager |
| Visual Effects | Tamara Stone | Compositing Supervisor |
