The script is incredibly dumb

"Hey you cheated and we have several trust issues, I can no longer sleep with you but I bet that if we buy a house and put ourselves in debt for 20 years we can still make it"

How is that logical? What kind of useless, incompetent marriage counselor will even say that is a good idea?

What's with Avery? Were all those scenes of Kevin hanging out with Avery made just to show that he is actually faithful to Natalie? To keep you wondering if he is going to start an affair with her just to find out it doesn't really do anything important the whole film?

And what's with the ending? They show a "Happy Ending" but seems like they completely forgot that the sister got murdered! There was absolutely no reaction to the sister being the one only human victim.

There was a woman who kept her lover living in an attic for a decade. (See below). This movie did keep me guessing. Not that great, but not so bad to deserve a 1. It kept my attention and I was entertained.

Walburga Oesterreich (née Korschel; 1880 - April 8, 1961),nicknamed "Dolly", was a German-born American housewife, married to a wealthy textile manufacturer Fred William Oesterreich (December 8, 1877 - August 22, 1922),who gained notoriety for the shooting death of her husband and the subsequent bizarre revelation that she had kept her lover, Otto Sanhuber, hidden in the attic of the home she shared with her husband for ten years.

This was really disappointing. I expected some kind of creepy haunted house movie but instead what I got was a low key stalking thriller going through the motions. It's supposedly based on a true story but is so far from the truth as to be make believe. It's another run of the old 'living in the house' plotline which has been done so many times before; if you want to see a good version try the Spanish movie SLEEP TIGHT. Kudos for Ashley Greene and Shawn Ashmore for doing their best with the protagonists but they can't lift this one from the doldrums.