In a perfect town filled with perfect families, twelve-year-old Justin Whitter has gone missing. Greg Harper (Jon Tenney), lead investigator on the case, struggles to balance the pressures of the investigation which has brought to attention a similar case thought to be buried in the past, while finding a way to forgive his well-heeled wife, Jackie (Helen Hunt), for a recent infidelity. Great strain is put on the family as Jackie’s guilt slowly gnaws away at her grip on reality, and when a malicious presence manifests itself and puts their young son, Connor (Judah Lewis), in mortal danger, the cold, hard truth about evil in the Harper household is finally uncovered.