Rachel and Darcy are best friends from childhood who share everything in life. Including friends and dates. Darcy is an obnoxious party girl and Rachel is a serious classy girl, complete opposites.Rachel has an affair with Dex, Darcy's fiance. However, Rachel could have had him first years ago in law school. Dex was unaware of her feelings for him until she accidently reveals them on her 30th birthday. Rachel is surprised to see Dex felt the same way about her back then and now wants to start a relationship with her. Rachel and Dex dance a tango of secrets and lies in order to cover up their feelings and what could be.
Rachel's memories of her time spent in law school makes her realize her true feelings for Dex and decides it's not just a fling, it's love. But first she must make Dex realize that he is about to make a huge mistake if he goes through with the wedding. She knows that Dex and Darcy are not a good match and that she and Dex were meant to be together. Rachel's friend Ethan tries to convince her that she must continue like this. He makes her realize that Darcy also get what she wants. This time she has to try to make herself happy. She must try to end it and tell her friend or continue on the way things are.