Mona verhuist met haar vriendje Robbie, die aan een nieuwe baan mag beginnen, naar een appartement in een oud gebouw. Al snel zijn ze in verwachting van hun eerste kind. Mona wordt echter geplaagd door nachtmerries die erger worden wanneer de pasgeborene van hun buren komt te overlijden. Elke nacht wordt ze door een demon bezocht en Mona gelooft dat het wezen de menselijke wereld via haar ongeboren baby poogt binnen te dringen.
Nee, helaas is Marerittet nog niet beschikbaar op Netflix in Nederland.
| Directing | Kjersti Helen Rasmussen | Director |
| Writing | Kjersti Helen Rasmussen | Writer |
| Production | Henrik Zein | Executive Producer |
| Production | Magnus Thomassen | Executive Producer |
| Visual Effects | Erik Ferguson | Visual Effects |
| Production | Charlie Corwin | Executive Producer |
| Production | Sveinung Golimo | Executive Producer |
| Production | John Penotti | Executive Producer |
| Production | Kjersti Helen Rasmussen | Executive Producer |
| Production | Michael Hogan | Executive Producer |
| Production | Eili Harboe | Executive Producer |
| Production | Kilian Kerwin | Executive Producer |
| Costume & Make-Up | Mia Kalve | Makeup Artist |
| Costume & Make-Up | Stina Lunde | Costume Design |
| Production | Alain de la Mata | Executive Producer |
| Costume & Make-Up | June Midttveit Olsen | Special Effects Makeup Artist |
| Sound | Jorunn Børve Eriksen | Boom Operator |
| Crew | Halvard Haldorsen | Stunt Coordinator |
| Production | Anita Jonsterhaug Vedå | Production Coordinator |
| Lighting | Christian Koblizek | Gaffer |
| Sound | Arve Stigen | ADR Recordist |
| Art | Anette Martinsen | Property Master |
| Editing | Mats Andersen | Color Grading |
| Writing | Hallvard Kristiansen | Storyboard |
| Camera | Kjetil Mathisen | Focus Puller |
| Directing | Cody Gallo | First Assistant Director |
| Lighting | Jørgen Werner | Gaffer |
| Sound | Thomas Angell Endresen | Dialogue Editor |
| Sound | Jorunn Børve Eriksen | Foley Artist |
| Sound | Yngve Leidulv Sætre | Sound Re-Recording Mixer |
| Sound | Isak Wingsternes | ADR Recordist |
| Sound | Thomas Angell Endresen | Sound Re-Recording Mixer |
| Editing | Brynjar Lien Aune | Editor |
| Production | Einar Loftesnes | Producer |
| Sound | Martin Smoge | Original Music Composer |
| Art | Cecilie De Lange | Production Design |
| Editing | Sjur Aarthun | Editor |
| Production | John Einar Hagen | Producer |
| Camera | Oskar Dahlsbakken | Director of Photography |
| Sound | Yngve Leidulv Sætre | Sound Designer |
| Directing | Andreas Søfteland Milde | Script Supervisor |
| Production | Kristoffer Sindre Vittersø | Associate Producer |
| Editing | Elise Hanssen | Assistant Editor |
| Production | Alicia M. Eidesund | Casting |
| Sound | Per Hansen | Boom Operator |
| Production | Nick Andre Helgesen | Production Manager |
| Writing | Ryan Wickers | Script Consultant |
| Editing | Mats Andersen | Colorist |
