Although Huang Zicheng obtained the secret, he did not want to hand over the real secret to Ye Wu, so he submitted the modified data to Ye Wu and waited in fear for the review results.Huang Zicheng returned to the office and learned that the institute's network had failed more than once recently. This made Huang Zicheng alert. If he could steal files in this way, had the hidden spy used similar methods to steal secrets?So Huang Zicheng decided to continue investigating in this direction.Mr. Yu already had the real data in his hands. After comparison, he found that the documents submitted by Huang Zicheng were fake, and he suspected that Huang Zicheng was a person planted by the national security.Mr. Yu and Boss Zhang discussed not to touch Huang Zicheng in a hurry. Yao Yao is the person who has the most contact with Huang Zicheng. They can start with Yao Yao to verify Huang Zicheng's identity.Xiao Yi took Zhu Yan to his home to spend the night together, and gave Zhu Yan a pair of glasses on the grounds of their one-week anniversary. Little did Zhu Yan know that these glasses were actually Xiao Yi's secret-stealing tool.Gao Tianyang and his colleagues were watching outside Xiao Yi's community, but unexpectedly discovered that a woman who looked like Jiahui had also come to the community, which aroused Gao Tianyang's vigilance.Gao Tianyang's suspicion was correct, Xiao Yi and Jiahui were exactly a pair of spies.After Zhu Yan fell asleep, Xiao Yi and Jiahui came to the balcony respectively. The two recalled the past when they pretended to be husband and wife to perform tasks together. The two had been in love for a long time, but now, their relationship could only be hidden in the dark night.