Season 1

While suspense novelist Di Shen was doing his interview, Agnes managed to escape from the abductor. Later, Agnes was hypnotized by the psychologist and described the process of the abduction, which led Inspector Zhou to Di Shen, where he found out that the suspect had mimicked Di Shen's novel to commit the crime.

Xueqing was abducted by a mysterious man to a dark enclosed room. Di Shen suspected that Zhenye was behind the abduction and shadowed him, however he found nothing. At the same time, Jianfeng did a background check on Zhenye and suspected that he might be the abductor. Xueqing was being tortured in the room all these while, she was in a very dangerous situation. 雪清被神秘人抓走，禁锢在暗无天日的密室里。狄深怀疑振业抓走了雪清，跟踪对方，但却没有结果。健锋调查振业的背景，怀疑他和这起案件有关。雪清在密室里饱受折磨，情况日渐危急…

When Di Shen failed to make Zhenye speak, the devil in him rose. He almost killed Zhenye. Due to the lack of concrete evidence, Jianfeng had to release Zhenye. Locked in the car boot, Xueqing struggled for breath; it was her will power that kept her alive. Di Shen and Jianfeng used their own ways to located Xueqing, but Di Shen managed to locate her and safe her first when he made the correct guess.

A tear bomb was released during Di Shen's fan meet. Jianfeng decided to allow Di Shen and Xueqing to be involved in the investigation. By their own methods, the three of them deduced the suspect's background and personality. Di Shen had an opportunity to nab the culprit, however he missed it when he got really worried about his sister, Di Yao.

Di Shen pursued the case and found out that Dr. Chen Baisheng might know some insights about it. After speaking to him, he suspected Zebang. In the name of saving his younger sister who was very ill, Zebang planted bombs in the hospital and demanded for the hospital to operate on his sister immediately. Xueqing was implicated, Di Shen and Jianfeng both tried to save Xueqing with their abilities.

Jianfeng, Jingcheng and pathologist Dingkang met at the crime scene of a murder case. The deceased was a young girl by the name of Xie Anni, and she was being stabbed at her heart. Di Shen and Dingkang met each other, both of them were actually old friends. Dingkang suspected that Di Shen was the mysterious man helping Zebang all the while, Di Shen denied ...

Tianrui had been mentally tortured by his evil thoughts, but with the help of Xueqing, he spoke about the first time he committed the crime. His target was lawyer Zhang Jingxuan. Jianfeng and Gangyi suspected Tianrui, however Xueqing firmly believes that Tianrui was not the one. At last, Tianrui was being abducted by the mysterious man.

The mysterious man did a recording and uploaded it onto the internet. He called himself the "Upholder of Justice". In his video, he told the public that they had 12 hours to vote how they wanted Tianrui to be punished. Xueqing discussed with Jianfeng and Jingcheng about the case and found out that it was once again related to Di Shen's novel.

Xueqing helped her uncle to investigate the murder case of Li Aiqin, and with the help of Di Shen, they managed to trace a suspect Tang Rongyao. Xueqing was reminded about the death of her father, she was devastated once again. Xueqing confined to Di Shen, she told him about how her father was implicated into a murder case and committed suicide 7 years ago.

Xueqing was grateful that Di Shen helped to return her father a name; their relationship took a step further. Di Shen went back to the places he hung out 7 years ago to reminisce the past, and bumped into Jingxuan coincidentally. When Di Shen found out that Jingxuan had been waiting for him, he rejected her. Dingkang questioned Di Shen's motive of being close to Xueqing, and warned him not to secretly take justice into his own hands.

Mysterious man kidnapped Luo Jingzhu, forced her to reveal how she committed the crime, and after which, used back the same methods on her. Under the interrogation of Jianfeng, Jingzhu admits and told Xueqing that her father's death was indirectly caused by her. Xueqing was traumatised. Jianfeng suspects that Di Shen was the mysterious man however had no proof to warrant his suspicion.

The case of "the hammering assault" returns, Jianfeng and Jingcheng found Chen Zhifeng who was the mastermind of the previous assault. Jingchen was afraid that Zhifeng will remember what happened 7 years ago, hence become overly suspicious about everything. He followed Zhifeng in the dark and found some possible leads. Then, Zhifeng remembered that Jingcheng was one of the people who attacked him in the past.

Di Yao kept meeting the same lady at different locations; she suspected that the lady had been following her. Xueqing felt that it is just an illusion; however Di Yao insisted that it was real. Di Yao was then led to her old house by the lady, and was forced to uncover Di Shen's secrets. Both of them got into a fight, the lady accidentally fell, however the one who was injured happened to be Di Yao.

Di Shen agreed to help Jingcheng plan a meet up with Chen Zhifeng to end their grudges, however Jingcheng killed Zhifeng by accident. All was seen by Jianfeng. Jingcheng seeked Di Shen's help to escape, but bumped into Xueqing which got her suspecting. She informed Jianfeng immediately. When Jingcheng held onto Xueqing as hostage, he was stabbed to death by Di Yao.

Di Yao couldn't accept the fact that she killed Jingcheng. Some images flashed through in her mind when she read about a road accident case, it seemed so familiar. What's weirder was that a guy named Jacob insisted that both of them know each other, but Di Yao had no impression of befriending him. She was in a great state of confusion.

Keji met up with Xueqing and Gangyi after a long while; throughout this time, he could never forget Xueqing. Though his father, Junlong, had been disapproving him to chase Xueqing as he still had a mission yet to fulfil, Keji confessed his adoration for Xueqing to her. Gangyi suspected that Keji was related to the "Forest-Hunt" murder case.

Di Yao was diagnosed with split personality disorder, Xueqing suggested to let her admit into hospital for her treated, however was violently objected by Di Shen. In order to avoid a court case, Di Yao went to apologise to Jacob for assaulting him, she was even humiliated by him. Di Shen couldn't control any further when he learnt about it, he went forth and punished Jacob by his means.

Xueqing tailed Di Shen and found Jacob's dead body, she started suspecting Di Shen. She felt really upset when Di Shen refused to be honest with her, and when she found out that Di Shen was hiding a lot from her, she started interrogating him. Di Shen relented and told her the story behind her father's death.

Gangyi fell into Keji's trap and finally saw his true colours, however, that cost his life. Xueqing decided to have a breakup with Di Shen after realising how much he had lied to her. It was a double blow for her when she found out the death of her uncle.

Shadow Walker appeared on the internet once again. This time, he left some clues for Jianfeng and his team to track down the mysterious man. And to their surprise, that person is Dingkang! After further investigations, Jianfeng found out that Dingkang, Jingcheng, Jingxuan and Di Shen were all from the same university. He suspected that Shadow Walker started from them.

Xueqing started planning her revenge after learning that Di Shen caused the death of her father. An abduction happened; it involved Jianfeng, Di Shen and Xueqing. Xueqing secretly planned for Di Shen to discover who the murderer of his mother was, and the murderer was also involved in Jianfeng's younger brother's abduction case name years ago.

Di Shen found out about Xueqing's plot of revenge, he decided to turn in to end off all hatred. However, Xueqing's plan was unstoppable. She and Di Yao, together killed Jingxuan; she wanted Di Shen to lose every single person close to him, wanted him to bear the same misery as she did.

After gathering all the evidence, Jianfeng realised that Xueqing was the mastermind, she killed Jingxuan. Heartbroken, Jianfeng gave Xueqing a chance to turn in. Dingkang suddenly appeared and captured Xueqing and Di Yao. He wanted Di Shen and Xueqing to pay the price for killing Jingxuan. Then, a fierce fight began.