There's not so much wrong with the premise, which could have made for a reasonably entertaining thriller. But as to realism and logic, there's really a whole lot amiss!
Why should a couple want to live in a newly built house in the middle of a totally barren and isolated nowhere, apparently at first without even the remotest safety-precautions? Why this complicated healed-from-cancer background, that doesn't add anything to the story? How come this highly intelligent wife (a psychologist no less) doesn't have any idea of their financial situation or the way they financed this house? And then letting her drive alone to a trailer-park that apparently is notorious for its criminality, and there break into a home and steal mail out-of a mailbox, committing one felony after another?! Or letting her impulsively follow a hunch (one that I personally failed to grasp, but that's probably my simple brain), and go look for hidden rooms in the middle of a housewarming party and right under the nose of the one person that she suspects?! (I mean, why not wait till the next day when he's gone out?). I could go on like this, it's one stupid decision after another!
After the final showdown we get a totally superfluous epilogue scene, making the movie go out with a puff. Well, it suits the whole project.
Why should a couple want to live in a newly built house in the middle of a totally barren and isolated nowhere, apparently at first without even the remotest safety-precautions? Why this complicated healed-from-cancer background, that doesn't add anything to the story? How come this highly intelligent wife (a psychologist no less) doesn't have any idea of their financial situation or the way they financed this house? And then letting her drive alone to a trailer-park that apparently is notorious for its criminality, and there break into a home and steal mail out-of a mailbox, committing one felony after another?! Or letting her impulsively follow a hunch (one that I personally failed to grasp, but that's probably my simple brain), and go look for hidden rooms in the middle of a housewarming party and right under the nose of the one person that she suspects?! (I mean, why not wait till the next day when he's gone out?). I could go on like this, it's one stupid decision after another!
After the final showdown we get a totally superfluous epilogue scene, making the movie go out with a puff. Well, it suits the whole project.