The Langfords are a perfectly happy family. Louisa and Kip, happily married for nearly forty years, have raised their children and are now entering a new phase of their lives where they will have more time for themselves. Everything seems perfect. But then, one day after Christmas, after a lovely family dinner, Kip tells Louisa that their marriage is over. It's not something Louisa expected. And what he also admits to her is that he has fallen in love with their son's ex-girlfriend, Zoe, the woman who broke Angus's heart. And so, Louisa's marriage is over... and a new life can begin.