A volatile, corrupt city threatened by toreign invasion and ru by an iron-fisted government, Nagasaki is the last place Sano Ichiro wants to be, Unfortunately, the shogun's Most Honorable Investigator of Events, Situations, and People has been banished there by a wicked adversary in the shogun's court.

Surrounded by spies, Sano must tread carefully. When the body of a Dutch trader washes ashore, he finds himself leading an investigation that could push Japan into war -- even as it thrusts his life into the hands of powerful enemies. Sano has to unmask a killer and prove his innocence, or his samurai head, and maybe his country, will fall.