Helena, a woman living a seemingly ordinary life, hides a dark secret—her father is the infamous 'Marsh King', the man who kept her and her mother captive in the wilderness for years. After a lifetime of trying to escape her past, Helena is forced to face her demons when her father unexpectedly escapes from prison.
Daisy Ridley
as Helena
Ben Mendelsohn
as Jacob
Garrett Hedlund
as Stephen
Caren Pistorius
as Beth
Brooklynn Prince
as Young Helena
Joey Carson
as Marigold
Yanna McIntosh
as Agent Lorna Illing
Gil Birmingham
as Clark Bekkum
Joshua Peace
as ATV Driver
Pamela MacDonald
as Mrs. Haver
Dan Abramovici
as Max
Sophia Walker
as Monika
