Harry gaat met zijn verloofde Ruth op trektocht doorheen het noordwesten. Tijdens de reis lijken er bovennatuurlijke krachten aan het werk in het bos die Ruth in hun macht hebben. Terwijl Ruth zich inbeeldt dat Harry op gruwelijke wijze komt te overlijden, loert paranoia om de hoek en vermoedt het stel dat ze niet alleen zijn.
Nee, helaas is Significant Other nog niet beschikbaar op Netflix in Nederland.
| Camera | Matt Mitchell | Director of Photography |
| Directing | Robert Olsen | Director |
| Writing | Robert Olsen | Writer |
| Directing | Dan Berk | Director |
| Writing | Dan Berk | Writer |
| Production | Dan Kagan | Producer |
| Production | Dan Berk | Executive Producer |
| Art | Priscilla Elliott | Production Design |
| Sound | Oliver Coates | Original Music Composer |
| Costume & Make-Up | Erin Aldridge Orr | Costume Design |
| Art | Whit Vogel | Art Direction |
| Production | Robert Olsen | Executive Producer |
| Editing | David Kashevaroff | Editor |
| Art | Vanessa Knoll | Set Decoration |
| Production | Maika Monroe | Executive Producer |
| Costume & Make-Up | Corinna Woodcock | Makeup Artist |
| Costume & Make-Up | Corinna Woodcock | Key Makeup Artist |
| Production | Kevin Sullivan | Executive Producer |
| Directing | Kevin Brown | First Assistant Director |
| Production | Janelle Scuderi | Casting |
| Crew | Lex Damis | Stunt Coordinator |
| Crew | Sara Beko | Stunt Double |
| Crew | Jeff McKracken | Stunts |
| Crew | Keith Cox | Utility Stunts |
| Crew | Tyler Lauderback | Stunts |
| Production | Nan Morales | Unit Production Manager |
| Production | Jennifer L. Smith | Casting |
| Directing | Amanda Boisselle | Second Assistant Director |
| Crew | Michelle Damis | Stunts |
| Camera | Danielle Eddington | Second Assistant "A" Camera |
| Camera | Kenji Sugahara | Drone Pilot |
| Lighting | Bryan Fletchall | Electrician |
| Lighting | Logan Reynolds | Electrician |
| Production | Ben Lipsey | Assistant Location Manager |
| Art | Aurelia Rohrbacker | Set Designer |
| Camera | Danielle C. Carroll | Second Assistant "B" Camera |
| Camera | Bruce Stanford | Digital Imaging Technician |
| Camera | Philip A. Anderson | Steadicam Operator |
| Lighting | Gordon Gaude | Electrician |
| Lighting | Desera Silva Frentress | Electrician |
| Lighting | Chris Purkiss | Chief Lighting Technician |
| Camera | Matthew Semchee | Grip |
| Camera | Jason Dinges | Grip |
| Lighting | Borek Minarik | Electrician |
| Camera | Nicolas Wachter | First Assistant "A" Camera |
| Camera | Taylor Lawson | Grip |
| Camera | Jason Kies | Grip |
| Camera | Eric Macey | First Assistant "B" Camera |
| Art | Alun Vick | Construction Coordinator |
| Crew | Conor Wing | Special Effects Coordinator |
| Art | Drew Pinniger | Property Master |
| Directing | Rachel Brock | Second Second Assistant Director |
| Sound | Julian F. Grijalva | Boom Operator |
| Art | Brady J. Condit | Set Dresser |
| Camera | Philip A. Anderson | "A" Camera Operator |
| Directing | Brett Hamann | Script Supervisor |
| Production | Chris Tran | Assistant Location Manager |
| Lighting | Nathan Heyer | Assistant Chief Lighting Technician |
| Art | Chris McFadden | Greensman |
| Art | Judy Wright | Construction Foreman |
| Camera | Joe Timko | Grip |
| Costume & Make-Up | Tanya Smith | Set Costumer |
| Costume & Make-Up | Shannon O'Connor | Set Costumer |
| Art | Adam Johnson | Assistant Property Master |
| Camera | Bruce Lawson | Grip |
| Production | Katie Rasmussen | Location Manager |
| Costume & Make-Up | Kristal Shannon | Special Effects Makeup Artist |
| Camera | Rizal Hosek | Grip |
| Sound | Morgan Hobart | Production Sound Mixer |
| Lighting | Cory Armstrong | Rigging Gaffer |
| Lighting | Toby Orzano | Electrician |
| Camera | Giovanni Knox | Grip |
| Costume & Make-Up | Dionne Barens | Costume Supervisor |
| Costume & Make-Up | Savannah Kay Gordon | Tailor |
| Costume & Make-Up | Melanie Tooker | Special Effects Makeup Artist |
| Costume & Make-Up | Savannah Kay Gordon | Costumer |
| Costume & Make-Up | Claire Amadea | Makeup Department Head |
| Sound | Derek Vanderhorst | Supervising Sound Editor |
| Editing | Mikey Rossiter | Digital Colorist |
| Production | Joey Grimmer | Production Supervisor |
| Editing | Brian Gavin | Assistant Editor |
| Costume & Make-Up | Mélé Egbe | Hair Department Head |
| Production | Nicole Flowers | Production Accountant |
| Production | Rachel K. Morgan | Production Supervisor |
| Costume & Make-Up | Michelle Stoyanoff | Hairstylist |
| Sound | Derek Vanderhorst | Sound Re-Recording Mixer |
| Sound | Caleb Hollenback | Sound Re-Recording Mixer |
| Production | Janette Evans | First Assistant Accountant |
| Sound | Derek Vanderhorst | Sound Designer |
| Production | Gladys Valiente | Post Production Coordinator |
| Production | Kimmy Latsch | Production Coordinator |
| Production | Michael Bertram | Assistant Production Coordinator |
| Sound | Taylor Flinn | Sound Designer |
| Sound | Russell Farmarco | ADR Editor |
| Crew | Laurel Reid | Craft Service |
| Crew | Dave Detroy | Transportation Captain |
| Camera | Allyson Riggs | Still Photographer |
| Sound | Sang Jun Kim | ADR Supervisor |
| Sound | Paul Hackner | ADR Editor |
| Production | Owen Demetre | Assistant Accountant |
| Production | Stephanie Wescott | Payroll Accountant |
| Sound | Russell Farmarco | Dialogue Editor |
| Sound | Marc Glassman | Sound Effects Editor |
| Sound | Walter Spencer | Foley Editor |
| Sound | Matt Robertson | Orchestrator |
| Production | Anita Kalathara | ADR Voice Casting |
| Sound | Maarten Hofmeijer | Music Editor |
| Sound | Peter Rotter | Conductor |
| Crew | Eric Solmonson | Transportation Coordinator |
