With a thriving cooking business, a full schedule of volunteer work, and a beautiful home, Daisy Shoemaker should be content. But her teenage daughter can be a handful, her husband can be distant, her work can feel trivial, and she has no real friends. While Daisy tries to identify the root of her dissatisfaction, she’s also receiving misdirected emails meant for a woman named Diana Starling, whose email address is just one punctuation mark away from her own. Diana’s glamorous, sophisticated, single-lady life is miles away from Daisy’s simpler existence. When an apology leads to an invitation, the two women meet and become friends. But, as they get closer, we learn that their connection was not completely accidental.