Set in a fictional Regency-era England, the story follows Sophie, a bright, kind-hearted young woman serving as governess to Lady Margaret, the spirited daughter of the Earl and Countess of Rosenberg. Though cheerful and composed on the surface, Sophie carries a deep and lingering void-she remembers nothing of her life before the age of twelve.

Found unconscious outside St. Luke's Orphanage by a kindly nun, Sophie grew up with no knowledge of who she truly was. Despite her efforts over the years to recover her lost memories, the past remains stubbornly out of reach.

That is, until a chance encounter with a stranger begins to unravel the threads of her forgotten life. As buried truths resurface, Sophie is drawn closer to a world she never knew she'd left-and to the man who may hold the key to her identity, and her heart.