Neighbors Julia Herrick and Lindsay Moore have enjoyed a decade of joint vacations, family dinners, and holiday parties with their two families practically melding into one. So when Lindsay off-handedly announces the Moores are moving in a week's time for her job, Julia is shocked and devastated. A mess of emotions, she turns to Lindsay's husband, Denny, for comfort. But as reassuring touches turn to gentle caresses, Julia can't tell if her feelings for Denny are real or merely a desperate attempt to distract herself from the pain of losing her best friend.

Denny can't understand why Lindsay suddenly wants to move from the idyllic development where they've raised their kids, alongside the Herrick kids, for the past decade. With his marriage already on the verge of collapse, their impending move becomes the tipping point for Denny to act on his illicit feelings towards Julia. But what happens if she returns his affections? Are they both willing to give up the lives they've known (and thought they loved) to take a chance on each other? Because no matter how it turns out, no one will escape the aftermath of their decisions.