Mark and Mary's meet-cute takes place at a community drug store, where she is hectic getting a pregnancy test, as well as he has to make an initiative to remind her they satisfied in university. After asking her out, he accompanies her as she takes the examination, as well as upon it revealing negative, she consents to a date. One year later on, they have actually fallen deeply, passionately, head over heels crazy, and also their speedy romance brings about marriage. So when Mary all of a sudden demands they open their relationship to "moral non-monogamy", Mark is taken by surprise, yet accepts try it. And that's where this story truly starts.