In the 1950s, Catherine "Kya" Clarke (Daisy Edgar-Jones) is abandoned by her family as a young girl and left to survive on her own in the dangerous marshlands of North Carolina. Endlessly resourceful and resilient beyond her years, Kya teaches herself to live off the land and the water. As the years pass, the townspeople of Barkley Cove come to know Kya as the mysterious and wild ‘Marsh Girl’.

But Kya isn’t all alone – over time, she is drawn to two young men from town, discovering a new and startling world. When one of the men is found dead and inexplicably linked to her, however, she is branded by the locals as the prime suspect in his murder, leading to a trial against seemingly insurmountable odds.

This sprawling mystery thriller is based on the 2018 novel of the same name by Delia Owens, which has gone on to become one of the most successful books of all time.