Leah Simmons lives a simple life as an English teacher in the small town of Riverside, Arkansas. She spends her days planning lessons, going to church, and trying to forget a sister who mysteriously disappeared more than twenty years ago. She spends her nights in a fitful sleep, plagued by nightmares about what might have happened to her. When one of her students goes missing under similar circumstances, Leah thinks she’s the only one making the connection–until a reporter shows up asking questions that only validate her suspicions. Together they come to the same conclusion: Things aren’t as simple as they seem in Riverside, and the town is hiding some dark secrets.