Inspector Kosuke Iwata, formerly of the Tokyo Metropolitan Police, is now working as a private investigator in California. He may have left his home country behind him, but the crimes he has to face here are just as horrific, and as mystifying. A dead transgender woman is found out on the train tracks near LA's Skid Row. A Mexican homicide investigator riddled with cancer and corruption. A river of dirty money flowing through the Sonoran Desert. And a mother's secrets, tracing all the way from 1970s Tokyo to Japan's 48th prefecture – Torrance, California.