Sophia, Tirzah, and Polly are best friends from boarding school who are living very different lives since leaving. The year is 1896, and Polly is teaching in an orphanage in northern England, Sophia is looking for a rich husband at the dances and parties of the London Season, and Tirzah is stuck acting as an unpaid companion to her forbidding grandmother in a remote part of Scotland. In a series of letters buzzing with the drama of being out in the world, the young women air their hopes, frustrations, and romances. The three friends want such different things—the security of marriage, the chance to help others, the excitement of love. Can they each find happiness in a world where their opportunities aren't as open as their hearts?