C.L.I.F.

Liao Xinyi received a message while out patrolling informing her that a National Service man named Jay had obtained a rifle and was threatening to kill his girlfriend, Jess. Xinyi rushed to inform Jess about this but got injured by the ricochet bullet…

Yaojia and team found a decayed corpse after they busted an illegal gambling and prostitution ring in the forest. The deceased, Sun Xiuqing, used to work for an investment company. Lantian discovers that Xiuqing’s death may be linked to his ex-wife’s current husband, Zhengwei.

Zhijie questions Zhengwei and Zhengwei admits to the extramarital affairs but denied killing Xiuqing. Lantian found a summon of Zhengwei beating the red light at Yuqi’s house. After careful investigation, it was confirmed that Xiuqing was with another man at the petrol station thereby proving Zhengwei’s innocence. He is released as a result.

Lantian takes up Zhijie’s challenge to find a mate. She gets to know psychologist Chen Yanjun as a result. Yanjun’s chivalry leaves a good impression on Zhijie and they hit it off well. Zhijie thought that Yanjun will choose her as his partner but it turns out otherwise and that leaves her puzzled.

Xinyi arrests Fan Jianming when she is investigating a serial rape case. When she goes through Jianming’s photos, she discovers that some of them belong to her friend Keqiang’s girlfriend, Sini. Xinyi realises that Sini used to prostitute but struggled to tell Keqiang the truth.

Xinyi brings up Sini to Yaojia but hesitates about revealing the truth to Keqiang. Yaojia advises Xinyi not to interfere in others' affairs. Sini bumps into Xinyi at the police station while assisting in an investigation. She tells Xinyi her reason for turning to prostitution and pleads with Xinyi to keep it a secret.

Guohuang’s fiancée, Ailin is murdered. He suspects Jiahao is the murderer but Jiahao denies it. The police find some evidence at Jiahao’s hideout but after Lantian’s close examination, Jiahao is found to have spoken the truth. This frustrates the team members who are bent to help Jiahao find the killer.

Yaojia and Xinyi suspect that it could be the same culprit who killed Ailin during their investigation into a serial assault case. Guohuang is devastated when he finds out that the killer is not Jiahao. He frantically runs to the hospital to ask the victims of the serial assault cases if they got a clear look at their assailant.

Zhiheng , Xinyi, Yongzhe and Coco go to the park to play Frisbee. Max secretly instigates Yongzhe to assault Don. Eyewitnesses claim they saw a few youngsters fleeing the crime scene and Yongzhe and his friends are brought to the police station for questioning. Yaojia finds Yongzhe suspicious when taking his statement.

Zhiheng suddenly receives a call from Coco claiming that she was raped by Yongzhe. Zhiheng and Xinyi rush to the scene but find no one. Situ Yan is surprised when she finds out that Yongzhe is involved in a rape case. She questions Yongzhe but he denies any knowledge of the case.

Zhengwei continues to indulge in gambling and even resorts to borrowing from loan sharks who have come knocking at his door. Unable to tolerate his gambling habits, Yuqi asks for a divorce. She packs up to leave but Zhengwei stops her. In a moment of fury, Zhengwei pushes Yuqi and she gets hit in the tummy.

Zhiheng does not hide his fondness for Xinyi and even declares to Yaojia that he would have courted Xinyi if he knew her much earlier. Yaojia is afraid that Xinyi might leave him for Zhiheng and decides to propose to her. Xinyi sees that Yaojia is sincere in his proposal and agrees to marry him.

Jingming confesses that he killed Zhengwei as a result of the robbery and leads the CID to the forest to look for Zhengwei’s body. Zhengwei’s body is highly decomposed and his strange postmortem positions have the CID speculating why he did not seek help and instead walked back into the forest.

Zhijie confesses to Lantian that although she and Yanjun are in love, she does not have much feelings for him. In fact, she feels that Yanjun seems to be hiding a lot from her. Lantian encourages her not to give up.

Yaojia escapes death and Xinyi shows even more concern for him. Jimmy knows that Xinyi likes Yaojia a lot and brings her to see Yaocheng who suffers from cerebellar atrophy. Xinyi finally understands Yaocheng is the reason Yaojia wants to break up with her as he is afraid that he may be a burden to her.

Yanjun is a suspect in Stanley’s case and is questioned by the police. He admits to meeting Stanley that day and was given a sum of money. Yanjun insists the money was a loan from Stanley and not extorted from him. He also insists he did not push Stanley down the building. The police find a sum of money was transferred into Stanley’s account but are unable to prove that it came from Yanjun.

Lantian and Zhijie bumped into Zhijie’s ex-boyfriend and his wife. Zhijie’s ex-boyfriend thinks she is still single but Zhijie says she already has a boyfriend. Lantian plays along and Zhijie is grateful to him for bailing her out and the two finally get together.

Lantian is afraid of Yuqi’s feelings for him and explains to her his relationship with Zhijie. He makes it clear that he only treats her like a friend. Yuqi begs Lantian not to leave her. She seeks Zhijie out and tries to harm her.

Zhijie investigates a child abduction case and finds that all evidence point to Yanjun’s patient, Anxing. She believes that Anxing not only killed her sister but is also involved in a few recent cases. Lantian smells a rat and finds more damaging evidence against Yanjun…

Zhijie thinks Lantian has gone after Anxing but it appears he has gone missing. Zhijie suspects something is amiss. Lantian awakes to find himself tied up in a wood factory. Yanjun appears and confesses his misdemeanors. Can Zhijie save Lantian in time?