In Regency London, Rose Marshall has achieved more that she could ever have wished for. She has successfully transformed from Ross, the unfulfilled bank clerk, and she has recently married Barney, the love of her life. Together with her work as a bookkeeper, Rose is busy and happy and yet there still remain certain elements that she can only dream about.

All that changes on a snowy winter's evening when Rose stumbles upon an abandoned baby, and she has to take charge of the child before it freezes to death.

Will Rose's rash actions impact on her happy and settled life with her new husband? Or will she and Barney successfully rise to this new challenge?