When a 12-year-old boy goes missing, lead investigator Greg Harper (Jon Tenney) struggles to balance the pressure of the investigation and troubles with his wife, Jackie (Helen Hunt). Facing a recent affair, great strain is put on the family that slowly gnaws away at Jackie's grip on reality. But after a malicious presence manifests itself in their home and puts their son, Connor (Judah Lewis), in mortal danger, the cold, hard truth about evil in the Harper household is finally uncovered.
