Under the Skin 猎罪图鉴 Episode 14

Lin Min, who studied with Xu Yiduo together with Shen Yi, came to Xu Yijia. She looked at the paintings in the studio and proposed to hold an art exhibition. Shen Yi felt that it was pointless to do so. Lin Min noticed a painting created by Shen Yi, which had been burned by Shen Yi seven years ago, which shows that this painting was copied by Xu Yiduo. Lin Min here advised Shen Yi that it is best to paint a real painting instead, otherwise the idea of ​​copying other people's paintings will be spurned. Shen Yi didn't make a decision after hearing this, and hurriedly left with the painting.

When Du Cheng visited the gallery, he found a lot of Shen Yi's paintings. However, these paintings had been burned by Shen Yi seven years ago. The gallery owner identified many people who sold the paintings from the photos. Li Han found a video about Xu Siwen, Xu Yiduo's son, from Xu Yiduo's mobile phone. On the video, Xu Siwen asked Xu Yiduo to help him raise a huge sum of money. Du Cheng suspects that Xu Yi sells many fakes of Shen Yi's works just to help Xu Siwen raise money.

Xu Siwen returned to Beijiang, and Shen Yi gave him all of Xu Yiduo's paintings. Xu Siwen decided to sell all the paintings, Shen Yi wanted him to keep some paintings as a souvenir, but Xu Siwen thought that Xu Yiduo, who loved painting very much, didn't like him at all, so he lived abroad all the time as an adult. Shen Yi asked Xu Siwen if he had received any remittance from Xu Yiduo, and Xu Siwen said that he had never received any money from Xu Yiduo.

In the interrogation room, Du Cheng told Xu Siwen that Xu Yiduo committed suicide after sending money to him. Xu Siwen took out all the bank cards in his name and asked Du Cheng to check it casually. Du Cheng asked Xu Siwen to repeat the words in the video. Xu Siwen bluntly stated that he had little contact with Xu Yiduo and his wife.

Shen Yi watched the video carefully and found that the person in the video was not Xu Siwen. Du Cheng expressed doubts. Shen Yi explained that although the two were very similar, he could see the difference between the two through the micro-expressions that could not be disguised. By analyzing the light in the video, Shen Yi found that the video was synthesized by AI face-changing technology

Shen Yi sat in front of Xu Siwen. Xu Siwen wanted to watch the video. Shen Yi told Xu Siwen that Xu Yiduo cared about him a lot, but he didn't dare to contact him for fear of disturbing his life, so he was deceived. Xu Siwen lowered his head to hide the tears from his eyes.

Through the connection of the case, Du Cheng found that similar fraud cases had occurred many times, and Director Zhang ordered to solve the case as soon as possible. As an information security company, Tongcheng is developing AI face-changing technology. The technical personnel in Tongcheng said that completing AI face-changing not only requires a large number of photos of the characters in the video, but also records the same video in advance as the base plate before the face-changing. Li Han found all the fraudulent videos. Shen Yi drew the portraits of the characters in the bottom plate of the video through careful observation and careful comparison. Du Cheng took the portraits to visit the victims' neighbors, and finally found Zhang Xiaoxue, a housekeeping worker. Du Cheng and Jiang Feng went to the housekeeping company to investigate and found that the victims of several fraud cases were the clients of Zhang Xiaoxue's services, and then Zhang Xiaoxue was taken to the police station.

During the interrogation, Zhang Xiaoxue's performance was a little nervous but calm, and Zhang Xiaoxue's computer did not have any information about AI face-changing, and the case was deadlocked. Li Han proposed to find clues from the social networking sites Xu Siwen often used. After screening, Li Han found four IP addresses that frequently viewed Xu Siwen's social accounts, and these four addresses all pointed to Zhang Xiaoxue's address.

Zhang Xiaoxue was questioned again. Shen Yi recalled the marks of male life he found at Zhang Xiaoxue's house. Zhang Xiaoxue explained that he once lived with his ex-boyfriend Hu Zhifeng, and the two had just broken up. Shen Yi asked about Hu Zhifeng's situation. Zhang Xiaoxue said that Hu Zhifeng was a computer salesman and traveled frequently. Li Han found out Hu Zhifeng's location, and Shen Yi learned from Du Cheng's mouth that the sentence for the fraudster was not severe. When Du Cheng was about to act, he found that Shen Yi was gone, and at this time Shen Yi knocked on Hu Zhifeng's door with a painting.