While recovering from an abusive relationship, Joy joins her friend's therapy group on an isolated mountainous retreat. Led by a doctor with experimental methods, the group is soon forced to confront a monstrous entity.

A severely injured man and woman awake in an abandoned sanitarium only to discover that a sadistic caretaker holds the keys to their freedom and the horrific answers as to their true identity.

Facing the grueling physical and mental tolls of participating in an ultramarathon, a doctor relives his struggles to treat a terminally-ill, 14-year-old patient.

Melissa mysteriously disappears when she seeks out the truth behind her mother's death in an isolated farmhouse.