Rachel and Kaitlyn are two quiet, shy 12-year-old best friends in small-town Georgia. Like many 12 year-olds, they liked having sleepovers and spent much of their time on the internet often looking up scary stories. Their favorite internet spooky story is that of the Suzerain, a clawed monster who lures children to his palace in the forest. To their parents, it seemed like a harmless ghost story, but in reality, the girls believed the Suzerain was real and that he would hurt their families unless they did what he told them to, which was perform a blood sacrifice. Together, they settle on their friend Emily as their target, stabbing her with a pair of scissors. Miraculously, Emily survives the brutal attack, and Rachel and Kaitlyn are picked up by the police. As the investigation begins, bigger questions about use of the internet and the state of the girls mental health come to the forefront.