Shallow, poorly educated Kitty marries the passionate and intellectual Walter Fane and has an affair with a career politician, Charles Townsend, assistant colonial secretary of Hong Kong. When Walter discovers the relationship, he compels Kitty to accompany him to a cholera-infested region of mainland China, where she finds limited happiness working with children at a convent. But when Walter dies, she is forced to leave China and return to England. Generally abandoned, she grasps desperately for the affection of her one remaining relative, her long-ignored father.