Stan and Joy Delaney are killers on the tennis court, and off it their chemistry is palpable. But after fifty years of marriage, they've finally sold their famed tennis academy and are ready to start what should be the golden years of their lives. The four Delaney children-- Amy, Logan, Troy, and Brooke-- were tennis stars in their own right. None of them had what it took to go all the way, but they're all successful grown-ups. Then a stranger named...

Cecilia Fitzpatrick has achieved it all -- she's an incredibly successful businesswoman, a pillar of her small community, and a devoted wife and mother. Her life is as ordinary and spotless as her home. But a letter is about to change everything, and not just for her: Rachel and Tess barely know Cecilia -- or each other -- but they too are about to feel the earth-shattering repercussions of her husband's secret.

Follows three mothers of first graders and how the arrival of single mom Jane changes all their lives.