Against a background full of doubts and complex interpersonal relationships, Lee Shou and Qiang Xian embark on a journey to find the truth.They face not only a series of mysteries, but also the deep emotions and the dark side of human nature hidden behind them.

When Qiang Xian and Junyong were interrogating Jin Doyan, they discovered a surprising fact: Doyan was actually entrusted by someone to go to Cheng Gu's house to find a USB flash drive.And this client turned out to be Wang Congtai, Qiangxian's father's rival.After Wang Congtai was taken to the police station, he revealed a shocking news: If Cheng Gu died, he would disclose the contents of the USB flash drive.This USB flash drive seems to be the key to solving all mysteries.

During the investigation, Lishou accidentally discovered the location of the USB flash drive, which was hidden behind the photo frame of his father’s mortuary stupa.The contents of the USB flash drive are even more astonishing: there are not only videos about Yin'e's manic depression, but also videos about Wang Congtai dressing up as a woman.Lishui showed these videos to Yin'e, only to find that Ru Qing had already known about it and was good at using hypnosis therapy.The image of Ru Qing in Li Shou's heart began to become complicated.

In order to uncover Ru Qing's secret, Lishou decided to let Zhun Yong undergo hypnosis.However, a scene that happened during the hypnosis process shocked Lishou: Zhunyong's nervousness and concern when he saw Lishou being injured were so real.This made Rishou begin to doubt the relationship between himself and Junyong.

In order to gain a deeper understanding of Confucianism, Lishou found her teacher, Professor Liu Mingshuo.The professor spoke highly of Ru Qing, but Sharphand discovered that Ru Qing's award-winning scalpel had disappeared.With the help of the professor, Lishou hypnotized Ru Qing.Under hypnosis, Ru Qing finally confessed her crime: she not only killed Cheng Gu, but also indirectly caused Shan Yu's death.

However, just when the truth was about to be revealed, Sharp Hand suddenly destroyed the USB flash drive.He thanked Qiangxian for not driving him away. Qiangxian originally planned to write a report to transfer Sharp Hands from the police force, but she ultimately chose to shelve it.This decision may be a kind of trust and expectation for the players.

After Ru Qing learned that Li Shou had found the scalpel, he tried to contact Ming Tie but failed.She found the sharp hand and confessed that everything that happened back then was a dream she created to avoid responsibility.This truth plunged Hands into deep pain and struggle again.He began to recall the scene when his mother drowned in the bathtub. This memory has always been painful in his heart.