After a personal tragedy strikes Peter and Hannah Larson, they find themselves picking up their lives and moving house. Said house isn't what it seems - something lurks within, seeming to originate from the dark and gloomy basement. As the presence continues to focus upon the two, its determination only grows, causing obvious and damaging rifts between husband and wife. It appears to already know Peter in some intimate way, and shocking, deeply hidden secrets soon come to light.