A young woman finds her life irrevocably altered after a scandalous affair in early 20th-century Japan. Mary Mackenzie, a sheltered Scottish woman, arrives in Peking to marry a British officer, but a sudden, illicit encounter forces her into a life of isolation and social exile. She must navigate the rigid expectations of colonial society and the unfamiliar cultural landscape of East Asia while struggling to maintain her independence. The narrative unfolds through a series of letters and diary entries, providing an intimate look at her evolving perspective over several decades.

This work is widely regarded as a sophisticated examination of cultural displacement and the resilience of the individual spirit. Readers often highlight the effectiveness of the epistolary format in capturing the protagonist's internal transformation over many years. The narrative is noted for its restraint and its ability to convey the complexities of colonial-era social dynamics without relying on melodrama. It remains a significant example of historical fiction that prioritizes character nuance and period authenticity.