All you need is love? For the residents of swanky Mayfair Estates, a pre-nup is just another item on the wedding to-do checklist - but three friends get more than they bargained for when they promise to love, cherish...and sign on the dotted line.

Ellie married her handsome, wealthy Prince Charming when she was young, naive, and willing to sign a one-sided pre-nup in the name of true love. But seven years and one toddler later, her happily ever after has come screeching to a halt. If she can't save her marriage, she's determined to save her divorce, and she's not about to let a lot of legalese stand in her way.

When Jen married Eric, he knew she wasn't head over heels. Still, he insisted that they were perfect together and even bankrolled her blossoming business. But when Jen's career finally takes off, she realizes that she may lose her husband. If Eric leaves, Jen will lose everything - including the marriage she values more than she thought.

Up-and-coming attorney Mara is sure her fiancé has forgiven her for a foolish one-night fling - until he adds a "cheating clause" to the pre-nup she had demanded. If he really trusts her, why the clause? And if she's really trustworthy, why is she objecting?

As romance collides with real life, three very different women turn to each other for moral support and insights about how to safeguard their most valuable assets: their hearts.