Reese Witherspoon read Delia Owen's 2018 bestseller,, she knew she had to bring the story to the big screen.«I read this novel probably in one day, maybe two days, I just couldn't put it down,» the actress and producer says in ET's exclusive look at the set of the upcoming drama, which stars Daisy Edgar-Jones as Kya, the central figure in the story. was first featured in Witherspoon's namesake book club before being adapted into a feature film by an all-female creative team, including director Olivia Newman and screenwriter Lucy Alibar.The book and film tell the tale of Kya's life as a girl who grew up alone in the swamplands of North Carolina before being thrust into the spotlight in a nearby town after a local football star turns up dead near her home.«You really don't know if she did it,» Witherspoon explains of the tumultuous story.