1896. Tirzah, Sophia and Polly are best friends who've left boarding school and gone back to very different lives. Polly is teaching in an orphanage. Sophia is looking for a rich husband at the London Season. And Tirzah is stuck acting as an unpaid companion to her grandmother. In a series of letters, they share their hopes, their frustrations, their dramas ... and their romances. Can these three very different young women find happiness?