2003: Carrie and her friends spend their days studying at boarding school, and their nights sneaking out to the woods. It's all fun and games until someone gets hurt. 2019: When Finn receives a shocking call from his estranged wife, Mhairi, informing him of their friend Kate's death, neither is prepared for the secrets they will uncover. The trail leads them to the events at a boarding school many years before. They are on the verge of unearthing the whole story -- but someone will do anything to keep it buried.