Time Period: A modern urban setting in an era when technological methods coexist with traditional criminal investigation. Surveillance covers the main streets, but the old districts still have many blind spots.
Setting: The story takes place in Linjiang Old City, a riverside city with a century of history. The Wutong District, filled with European-style buildings from the Republican era, is just one street away from the modern CBD. The city's blend of old and new provides unusual conditions for crime.
Background: A seemingly peaceful city is struck by a string of bizarre murders, and an antique pocket watch from the nineteenth century is left at every crime scene. During her investigation, Captain Shen Qinghe discovers that the cases somehow overlap in time with an unsolved case her mother handled twenty years ago.
