Set amid the upheaval after a royal execution, the narrative follows a dispossessed royalist family as they flee to the Continent and struggle with loss, separation, and the efforts to reclaim honor and home. A grieving father travels with his young daughter while an elder sister is raised abroad by a grandmother; their fortunes intersect with intrigues, secrets, and a suspicious death whose motives are slowly revealed through letters, confrontations, and a trial. Scenes shift between convent walls, fashionable London, rural manor life, and courtroom drama, exploring loyalty, social change, and the personal costs of political conflict.