Helena groeit op met haar vader en moeder in de moerassen van Michigan, ver afgezonderd van de rest van de wereld. Haar excentrieke vader, die Helena’s moeder ontvoerde en bekend staat als ‘The Marsh King’, leert Helena jagen en overleven in de wildernis, totdat haar moeder een manier vindt om met haar te vluchten en haar vader wordt opgepakt. Twintig jaar later heeft Helena haar verleden achter zich gelaten en een gezin opgebouwd. Maar wanneer haar vader uit de gevangenis ontsnapt, komt haar verleden aan het licht en heeft The Marsh King het op haar en haar dochtertje gemunt. Ze weet meteen dat er maar één persoon is die hem kan opsporen: Helena zelf.
Nee, helaas is The Marsh King's Daughter nog niet beschikbaar op Netflix in Nederland.
| Production | Cliff Roberts | Executive Producer |
| Production | Robert Simonds | Executive Producer |
| Production | Charles Miller | Executive Producer |
| Production | Adam Fogelson | Executive Producer |
| Production | John Friedberg | Executive Producer |
| Writing | Mark L. Smith | Screenplay |
| Production | Samuel J. Brown | Executive Producer |
| Writing | Elle Smith | Screenplay |
| Production | Michael Heimler | Executive Producer |
| Writing | Karen Dionne | Book |
| Production | Michelle Wade Byrd | Casting |
| Costume & Make-Up | Anne Dixon | Costume Designer |
| Camera | Alwin H. Küchler | Director of Photography |
| Production | Mary Vernieu | Casting |
| Art | Tim Grimes | Production Design |
| Costume & Make-Up | Faye Crasto | Makeup Artist |
| Art | James Dardenne | Art Direction |
| Costume & Make-Up | Jordan Samuel | Makeup Artist |
| Costume & Make-Up | Michelle Côté | Hairstylist |
| Costume & Make-Up | Michelle Côté | Hair Designer |
| Costume & Make-Up | Lukas Press | Hairstylist |
| Costume & Make-Up | Jordan Samuel | Makeup Designer |
| Costume & Make-Up | Anthony Veilleux | Tattoo Designer |
| Costume & Make-Up | Michelle Côté | Hair Department Head |
| Camera | Brendan Adam-Zwelling | Still Photographer |
| Editing | Naomi Geraghty | Editor |
| Sound | Biko Gogaladze | Foley Artist |
| Production | Lori Fischburg | Unit Production Manager |
| Production | Charles Miller | Unit Production Manager |
| Directing | Urs Hirschbiegel | First Assistant Director |
| Sound | Adam Janota Bzowski | Original Music Composer |
| Crew | Amy Szoke | Stunts |
| Directing | Mark Romanelli | Second Assistant Director |
| Crew | Brian Jagersky | Stunt Coordinator |
| Production | Clementine Quittner | Associate Producer |
| Production | Christopher Guzman | Post Production Coordinator |
| Production | Teddy Schwarzman | Producer |
| Production | Mark L. Smith | Producer |
| Directing | Neil Burger | Director |
| Production | Keith Redmon | Producer |
