When Olivia and Brody drive up to their friend's idyllic inn -- nestled in a valley in the Mediterranean town of Cassis -- they know they've chosen the perfect spot for their wedding. The ceremony will be held in the lush garden, and the reception will be a small party of only their closest family and friends. But when Olivia and Brody's guests check in, their peaceful wedding weekend is quickly thrown off balance. The first to arrive is Nell, Olivia's oldest daughter from her first marriage. Impulsive and reckless, she invites a complete stranger -- an enigmatic man who is both alluring and a bit dangerous -- to be her guest at the wedding. The next is Carly, Olivia's youngest daughter, the responsible and pragmatic one. Away from her demanding job and a strained relationship, she feels an urgent need to cut loose -- and for once do something brash and unpredictable. Then there is Jake, Brody's playboy best man, and Fanny, Brody's mother, who is coping with the fallout of her own marriage. And in the middle of it all is Olivia, navigating the dramas, joys, and pitfalls of planning a wedding and starting a new life.