A teenage runaway takes part in a sleep study that becomes a nightmarish descent into the depths of her mind and a frightening examination of the power of dreams.

While adjusting to a new life in a quiet suburban community, a recently divorced mother and her two teens receive mysterious red letters instructing them each to kill or be killed.

After hearing a young boy's cry for help, a sister and brother venture into a vast field of tall grass in Kansas but soon discover there may be no way out...and that something evil lurks within.

A new group of girls arrives at Pridemore Juvenile Facility, where the brutal warden plays favoritism with a few, and treats the rest like animals. But one girl is not taking this horrible treatment lying down.