Zheng Shumei was suddenly poisoned and was admitted to the hospital. The doctor found a pinhole in the back of her neck and suspected of being injected with an unknown toxin. Toxins destroy the immune system, Zheng Shumei must be isolated before understanding the toxicity. But because of sepsis, the doctor is not sure whether Zheng Shumei can survive the dangerous period.
Xue Jiaqiang is very self-blaming. If Zheng Shumei were not asked to investigate the core data, it might not have happened. In fact, Zhuo Kai also suspected Zhang Jihong, because only her core data can tamper with license plates and monitoring. Hearing Xue Jiaqiang say the same, he became more suspicious of Zhang Jihong. Zheng Shumei said before the accident that she received an encrypted file from her friend. You can get Zheng Shumei's computer, and the files inside need voiceprint decoding. It was too late to rush into the hospital with the computer. Zheng Shumei closed her eyes forever.
Zhang Jizi was vaguely aware that Zheng Shumei's poisoning was related to her sister. She was more direct than Zhuo Kai and Xue Jiaqiang and asked her sister face to face. Zhang Jihong only admitted to receiving money to do things for others, but refused to disclose the client's background and also refused to admit that he sent someone to kill Zheng Shumei. Zhang Jizi didn't see her sister's identity until then. It was when Zhang Jihong reported his father's whereabouts to the police that Wei Zuorong would come. His own biological father can betray, not to mention other people. She did all this so that Zhang Jizi would no longer be beaten by his father, but also to endure the pain alone.
Xue Jiaqiang decided to join the security intelligence agency to investigate Zhang Jihong. He told Wei Zuorong about his suspicions, and also said all the doubts he had collected. Wei Zuorong remained silent and agreed to Xue Jiaqiang's request. Not long after, Wei Zuorong received Zhang Jizi's resignation letter, which was forwarded by his sister Zhang Jihong. He did not approve it immediately, and only gave Zhang Jizi a vacation, so as not to arouse others' suspicion. He also reminded Zhang Jihong about Xue Jiaqiang's undercover in the security intelligence agency. Xue Jiaqiang is in the light, they are in the dark, and Wei Zuorong is confident enough to cover up the truth.
After a day of dealing with Zhang Jihong in the Security Bureau, Xue Jiaqiang returned to the office of the expert group, and together with Zhuo Kai, poured a glass of wine to commemorate Zheng Shumei. With a sour heart, he blamed himself for killing Zheng Shumei. He also remembered what Axia wanted to say before and couldn't tell, and he felt ashamed. Axia grabbed his arm when he was dying, pinching hard again and again. At that time, Xue Jiaqiang thought that Ah Xia had something to say, and it was not until Zheng Shumei died that the ring on Zheng Shumei's hand made him realize that Ah Xia tried to use the Cupid arrow on the ring to point to Wei Zuorong behind.
Going to the security agency undercover, the clear goal is Zhang Jihong, but in fact, to investigate Wei Zuorong, this is a strategy that Xue Jiaqiang and Zhuo Kai discussed. We must reveal the true face of Wei Zuorong and avenge Axia and Zheng Shumei.
Due to excessive grief, Xu Tiantang rushed to the security intelligence agency regardless of drunkenness and accused Zhang Jihong of killing Zheng Shumei. Zhang Jihong was very panicked and asked Wei Zuorong to cut the grass and remove the roots without leaving any future troubles. But Wei Zuorong could not have made Xu Tiantang disappear from the world because of this, it would only make people more suspicious. He made arrangements. From now on, Zhang Jihong can no longer act rashly and only do his job. Anything related to the Eternal Gang, Wei Zuorong handed over to Zhang Jihong's assistant, A Xian.
Wei Zuorong's move was like a rabbit and a dog cooking, Zhang Jihong felt cold. At this moment, she thought of stopping, giving up the core data, leaving Hong Kong with her sister, and starting again elsewhere.
For many days, Xue Jiaqiang's investigation of Zhang Jihong had made no progress, which was as expected. Xue Jiaqiang revealed to Wei Zuorong that there was still an encrypted file obtained by hackers in Zheng Shumei's computer and could not be copied. He has found a foreign voiceprint expert to extract Zheng Shumei's voice from the Internet, synthesize it, and generate the specified voice. Recently, the expert is going to Hong Kong to try to unlock files on Zheng Shumei’s computer. Xue Jiaqiang asked Core Data and Zhang Jihong to assist at that time. As long as Zhang Jihong was found to have changed, he would be arrested. Wei Zuorong agreed to Xue Jiaqiang's plan without knowing any fraud.
Zhuo Kai, Tan Huanxi, and Xue Jiaqiang expected that Wei Zuorong would agree to the plan. If the unlock was successful, he would kill Zhang Jihong, and kill two birds with one stone. As long as Zhang Jihong knows Wei Zuorong's thoughts, he is not afraid that Wei Zuorong will not be caught.