Shen Yao's mistaken identity as the murderer moved his heart, but the person he identified had died seven years ago. Forensic doctor Ji Yuan discovered that there was a truth beyond medicine hidden behind this abnormal physiological reaction, which led to a series of murders buried by power. When the symbol written in blood by homeless man Zhou Entropy points to the real murderer, Internet celebrity Ruan Tang's live broadcast camera is aimed at Shen Yao - and Huo Yan, who was investigating the case, is quietly burning the last testimony.
