Mystery writer Rachel Carson's life is shattered when her 5-year-old son accidentally drowns. Her best friend rents a secluded cottage so that Rachel and rest, but Rachel ends up being caught in a murder mystery that rocks the town and her nerves.

Tucked away in an estate outside of London, Professor Coupland along with a team of university students conducts an 'experiment' on Jane Harper, a young girl who harbors unspeakable secrets. What dark forces they uncover are more terrifying than any of them expected. Inspired by true events.