After Dr. Zhou hung up on Yang Guangyao, she returned to the bedside, but her husband was already aware of her actions. Soon, as Zhuang Xiaohua drove over swaggeringly to bring their people inside, she reminded the accompanying police officers not to be too obvious. After being frisked at the entrance, they went in. Acting casual, Zhuang Xiaohua introduced her new “colleague” to her boss, Sanders. Unexpectedly, when Zhang Tianming reached out to shake hands with Sanders, the latter refused. Instead, Sanders said he wanted the “friend” waiting outside to join them inside for a chat. Seeing this from the car outside, Liu Weitao prepared to act accordingly. Once inside, he openly mentioned that the police had vital evidence that someone had deliberately destroyed. That was why he had followed them all the way here.
After hearing this, Sanders took the initiative to ask Liu Weitao’s name and invited him to drink a glass of liquor he poured. Without hesitation, Liu Weitao drank it. But as soon as he did, the police monitoring from outside lost the signal feed. Realizing something was wrong, they grew concerned. Meanwhile, inside the room, the relaxed Sanders remarked that among these outstanding police officers, he wished to pick one as his right-hand man. He wanted them to prove themselves.
Just as they were to demonstrate their abilities, Forensic Doctor Chen quickly knocked his wife unconscious and rushed over to Sanders’ location. Once there, he ignited a raging fire. Facing the sudden flames, everyone inside panicked. Zhang Tianming, seeing Sanders heading alone toward the safe room, followed him. But Sanders clearly had no intention of saving anyone else. Zhang Tianming had no choice but to knock him out, use his handprint, and leave. Amid the blaze, after handing over incriminating evidence from the suspect, Liu Weitao pushed others away, sacrificing himself.
Meanwhile, as Yang Guangyao was in the elevator successfully subduing Forensic Doctor Chen and thwarting his sabotage, he received the bad news about Liu Weitao’s condition. He rushed to the hospital but found there was no way to save him. Furious and heartbroken, he wanted to charge out immediately to settle accounts with the arsonist, but the on-site police held him back. Back at the station, his colleagues, learning of Officer Liu’s fate, were determined to stay and continue this noble work.
Soon afterward, Dr. Zhou took the initiative to come to the police station to see her husband. Presenting herself as his wife, she began questioning him about tutoring Mai Zhihong and the entire cruel killing process. Listening from outside, Yang Guangyao finally learned that Officer Ye had intercepted their anonymous report back then. As those inside vividly described the entire murder process, Zhang Tianming, upon hearing mention of his father, flew into a rage and tried to rush in, only to be restrained again.
Finally, it was Yang Guangyao’s turn to confront him. Facing his interrogator, Forensic Doctor Chen felt that the reason he returned to harming others after so many years was, in fact, because of this policeman before him. During his subsequent actions, he deliberately falsified death reports to mislead the police. Eventually, he found the key figure, Mr. Shi, and before Mr. Shi’s death, learned that the mastermind was Sanders. When Yang Guangyao inquired about Mai Zhihong’s death, Chen insisted that Mai willingly gave his life. He believed that by killing these scum, he was making them taste the victim’s pain. Yet deep down, he still shared a desire with the policeman before him—he yearned to make the world a better place.