Chengdu: a teeming, modern metropolis. Yet China's painful turbulent history still leaves its mark on the minds of all who live there. Philip Ye, half English, half Chinese, is a homicide detective with the Chengdu Public Security Bureau who suffers his own anguish from a life blighted by tragedy and the unsettling appearance of ghosts that often intrude in on his investigations. On a misty grey morning one such apparition leads him to a busy street corner during the rush hour where he bears witness to a shocking event. Against his better judgment, Phillip is drawn into the search for a missing, vulnerable boy. His investigation brings him into contact with Xu Ya, a brilliant and beautiful public prosecutor. She is new to Chengdu, determined not only to make her mark but to also leave behind her own personal heartbreak. They have crossed paths before. He has no memory of her, but she remembers him very well indeed.... Soon enough Philip Ye has a vicious murder on his hands, and then another - the boy's disappearance seemingly sparking a chain of violent events. With the help of Xu Ya - dedicated to upholding făzhì, the Rule of Law, in China ‒ and her indefatigable and worldly-wise assistant Fatty Deng, Phillip Ye is quickly on the trail of a mysterious figure known as The Willow Woman. But, unbeknownst to them all, there are secretive and subversive forces at work within the dark heart of the city and tremendous danger awaits....