Zhou Yan, an intern in the emergency department, was humiliated by the three directors in public. He killed three authorities in one night and took advantage of their fatal mistakes, which caused an earthquake in the medical world. The cold-faced deputy director Lin Zhuo takes in the crazy genius, the disciplinary inspection officer Su Tang secretly investigates, and the security guard Chen Ye has key evidence. When Zhou Yan's surgical video was uploaded to the Internet by the plagiarist Han Zhao, and when Lin Zhuo's secret evidence chain was reversely corroded by Zhao Qichuan, a medical purge with life as a bargaining chip was officially launched - he was not crazy, he just finally saw clearly that every drop of blood in this hospital carries a number.