In the autopsy room of the Binhai City Public Security Bureau, the smell of formalin mixed with the moisture of rainwater filled the air under the pale shadowless lamp. Lu Chen, leader of the municipal bureau's serious crime team, stood beside the autopsy table and watched the forensic doctor, Chen, lift off the white cloth. The deceased was a young woman. Her chest was cut open precisely, her heart was missing, and the edges of the incision were as neat as a surgical operation.