I was vested in this movie early on, intrigued to find out more about this couple, their relationship and back story, but as it evolved into an estrangement based solely on sex, I lost interest. There were too many things thrown in for shock value. And the way the couple drifted apart and the reasons for seemed more like manipulation to fit a particular plot line than genuine reaction of the characters as they had been portrayed. I have to say, though, that I enjoy watching Jason Clarke in anything he does.