Forensic pathologist Margaret Campbell had finally decided to leave Beijingaand the man she lovedaand return home to the States. But thereas a new case. Four men have been killed. All of them were from China, and all were victims of what looks like ritual sacrifices. The U.S. ambassador practically forces Margaret to work once more with Li Yan. As Margaret and Li Yan investigate, they come closer and closer to finding the truth behind the killeras executions. They also come closer to a killer who will sacrifice anyone to conceal a secret.