In Harbin in 1938, the Kwantung Army Intelligence Department, the Special Higher Police, the South Manchuria Railway Investigation Department, and the GPU’s Far Eastern intelligence network all had their forces entrenched in the city. On the surface, the protagonist is the owner of the Time Gallery on Harbin’s Central Street, specializing in reproductions of famous paintings. Elegant and somewhat aloof, he is a well-liked gentleman in social circles. But behind the scenes, he has a photographic memory, is fluent in seven languages and ten dialects, and has inherited knowledge of traditional Chinese medicine as well as modern medical expertise. He is also a master of psychology. Can you guess what he does?