Everybody should just relax and enjoy watching a red hot, middle aged Momma's sexual jealousy over her beautiful daughter in law. The photography was great, loved the rural location (without the stupid horses), and Gwyneth and Jessica look as good as they ever have. The problem is that the director tried too hard for believability, and that resulted in a very average, plodding, sometimes laughably bad movie. If they had taken it over the top, like what you find in good novels, (torture, perversion), then we would have had a classic.
Its a shame they held back because Jessica and Gwyneth looked amazing. Who cares if their performances weren't great? Their screen presence made up for it. They were ripe for a deliciously violent, twisted older woman/younger woman B-movie and the director blew it. (Check out Piper Laurie and Sissy Spacek in "Carrie." They set the standard for over the top, twisted mother-daughter action.)