On the day that the crime team leader Lu Zheng was seized of power, he carved a fingerprint code that no one could decipher on the fingertips of the third corpse. Forensic doctor Shen Zhao discovered that these traces were actually living neural memories, and each one pointed to the bloody transactions of the top police officers. Vice-captain Chen Yan risked his life to deliver the evidence, while disciplinary inspection team leader Zhou Huaijin silently assisted, while Qin Xiao, the mastermind behind the scenes, was using the fingerprints of the deceased to reshape his identity. When the whole city thought the case was over, Lu Zheng's fingerprint diary had just turned to the second page.
