He Ziyuan is a famous lawyer of TYF Law Firm, known for winning every lawsuit. In actual fact, she joined TYF for another purpose. She originally had a happy family with her husband, Lin Kaisen, a lawyer in TYF, and two children. Unexpectedly, her husband and child were murdered one night. She suspects that her husband's death was related to TYF, so she joined the company in order to investigate. 何紫媛是TYF律师事务所的著名律师，从来没有输过一场官司，战无不胜。其实紫媛加入TYF另有目的...

TYF lawyer Zhu Wei, accused of killing a golden retriever with a tennis racket, chose to defend himself, claiming that it was an accident due to fear. The judge acquitted him, but it turns out he was not afraid of dogs at all. Ziyuan remembers that Kaisen once said that Zhu Wei was an unfathomable person. She believes that Kaisen's death was related to Zhu Wei and Zhengde, the head of the firm. TYF的律师朱玮被控用网球拍打死一只黄金犬, 选择自我辩护，声称因怕狗而意外将狗打死。法官判他无罪...

Zhu Wei and Ziyuan went to the police station to bail Zhang Haohui, who was accused of abusing his father. Ziyuan learns that he is a freelance accountant of TYF, and suspects that he was helping TYF manage secret accounts. She probes him but finds nothing. The major shareholder of the firm, Yang Tao, returns after disappearing for two years, and asked to see Ziyuan.朱玮和紫媛一起到警局保释因虐待父亲而被控的张浩辉，紫媛好奇浩辉的身份，后得知他是TYF的自由身会计师。紫媛怀疑浩辉帮TYF处理秘密账目，借口到浩辉家找证...

Ziyuan invites Zhu Wei to her house. Probing him, she suspects that he was the murderer who broke into her house and killed her family. Investigator Alex also finds Zhu Wei's background unusual - he lived in the UK as a child, returned home one day to find his parents murdered by an intruder, and killed the robber in self-defence. The lawyer who defended him in court was Yang Tao...紫媛邀请朱玮到家里作客，双方互相试探，暗流涌动，紫媛甚至怀疑朱玮就是闯入家里杀死凯森的凶徒。。。

In order to obtain a liver for her child's surgery, Ms. Fan fell into a scam. Not only was she defrauded, her child also died without a timely liver transplant. The desperate Ms. Fan wanted to kill herself, but was dissuaded by Ziyuan, who persuaded her to live and bring the scammer to justice. With the help of Ziyuan and Alex, they finally brought the swindler, Dave, to justice.范女士为了获得肝脏，为孩子移植，结果陷入诈骗，不但钱被骗走，孩子也因为等不到肝脏移植而丧命。绝望的范女士想要自杀，被紫媛劝阻...

The verdict of the Cannng Factory Murder two years ago is out. Li Deming is convicted of killing the owner of the canning factory, Yu Lihua, and is setenced to death. Ziyuan wants to help Li Deming appeal, but Zhengde objects. She approaches Yang Tao instead, who gave her his support. Unable to guess what was on Yang Tao's mind, Zhengde reminds Ziyuan that his support might not be out of goodwill.两年前的罐头工厂杀人案判决出炉，李德明被判杀死罐头工厂老板余力华，面对死刑。紫媛想帮李德明上诉，遭正

In order to ruin the relationship between Ziyuan and Yang Tao, Zhian deliberately tells Ziyuan that Kaisen had a big fight with Yang Tao on the day of his death. Ziyuan was shocked and confronts Yang Tao, who acquiesced, but did not reveal the reason for the quarrel. Ziyuan suspects that Yang Tao is the one who ordered the killing of Kaisen, and no longer trusts him.为了破坏紫媛和杨涛的关系，知安故意告诉紫媛，指凯森在去世当天，曾经和杨涛大吵一架。紫媛震惊，询问杨涛，杨涛默认，但没有透露吵架的原因。紫媛怀疑杨涛就是指使杀害凯森

Alex follows Jimmy to a hospital and sees him talking to a man, mentioning liver transplant. She suspects that Jimmy was the person in contact with Ms. Fan, and was illegally trading organs. Ziyuan, Alex and Ms. Fan set a trap to lure Jimmy in, getting hold of evidence against his criminal offence, and forced him to change his statement to help Deming get out of the charges against him.Alex跟踪Jimmy到一医院，见他与一男子对话，提到换肝的事，怀疑Jimmy就是和范女士接触的刘先生，暗中进行器官买卖。

Alex and Ziyuan questions Shaofen's whereabouts on the night of Lin Baoxiang's disappearance. She admits that he brought her into the mountains that night, and had planned to kill her for insurance money to pay off his debt. In a panic, she hit him with the car, killing him. She claims to have buried his body and scrapped the car, but Ziyuan doesn't believe she could have done it by herself.Alex和紫媛以挖掘出的真相，追问少芬在林保祥失踪当晚的行踪。少芬承认当晚丈夫骗她到山上，因为欠债，要将她杀死，

Yang Tao takes the blame and confesses to police that he had killed someone years ago, shocking everyone. Police dug up remains, as well as his cufflinks at the crime scene. Yang Tao claims that Lin Baoxiang had suspected he had an affair with his wife, asked him to meet at the mountains, where they had an argument. When he was about to drive off, he accidentally killed Lin Baoxiang...杨涛为少芬顶罪，到警局自首，谎称多年前不小心撞死人并埋尸，震惊各界。警方在埋尸地点挖出骸骨以及属于杨涛的袖扣。杨涛指林保祥怀

Youxuan feels guilty for her father and brother's deaths. She attempts suicide in the toilet but was discovered by Ziyuan. Youxuan confesses the reason for their deaths. Turns out, she was drugged and raped by Gu Wangda two years ago after partying at a nightclub, and became a victim of sexual extortion. Youxuan tells her father about the matter, leading to his ultimate demise... 有宣为爸爸和弟弟的死感到歉疚，躲在厕所企图自杀，被紫媛发现。有宣告诉紫媛，爸爸和弟弟是自己害死的！原来两年前，有宣到夜店狂欢...

Youxuan takes out a brooch that Gu Wangda had dropped on the night she was violated, hoping it can be used as a piece evidence. Ziyuan takes it to Zhi'an and interrogates, asking if he has ever seen the brooch before. Zhi'an has seen Zhengde wearing the same kind of brooch before, but pretends to be unaware. He later threatens Zhengde to recommend him as a partner at the shareholders meeting... 有宣拿出当年被侵犯时，顾旺达所掉的一颗袖扣给紫媛，希望以此作为证据。紫媛拿着袖扣去试探知安...

Yutong was kidnapped on her way home. Zhi'an searches everywhere to no avail, and suddenly realizes that this might have been done by Zhengde. He begs for Zhengde to let him off, apologizing for ever threatening him. Zhengde releases Yutong, knowing Zhi'an is intimidated. Their conversation was overheard by Ziyuan. Alex later pretends threatens Zhi'an by pretending to be Shark. 雨彤回家时突然被人绑架，知安四处寻找无果，突然想起此事可能是正德所为，往求正德高抬贵手，卑微道歉，称自己不该威胁他。正德目的达到...

Alex pretends to be a cleaner in an attempt to infiltrate the Guwang Group, but was unsuccessful. At this moment, Gu Wangming, Edwin and driver Kuang walks past her, and she feels the hair stand on the back of her neck, as though Shark is right beside her! Wangming was dissatisfied with Gerald, and holds a meeting to kick him out of Circles on the grounds that he was involved in a lawsuit. Alex假装应征清洁工人，企图混进顾旺集团，但不成功。此时旺明、Edwin和况司机从她身边经过...

Dazhong harresses Yiyi, evoking childhood trauma. Dazhong had sexually assaulted Yiyi when he was young. After discovering this, Yiyi's mum wanted to leave together with him, but Yiyi refused. In a struggle, his mum died in a car accident. During counselling, the counsellor discovers that Yiyi had been assulted, called the police, leading to Dazhong being sentenced to jail. 大忠纠缠一一，唤起一一的童年噩梦。原来一一年幼时曾遭大忠性侵，母亲发现后要带他离开，一一却不肯，母子俩在路上拉扯，导致母亲车祸丧生。。。

Zhu Wei checks Dazhong and Yiyi’s DNA, only to find out that Dazhong is Yiyi’s father. Turns out, Yiyi’s mother had given birth to Yiyi after being raped by Dazhong. Upon learning this, Yiyi breaks down vowing to bring Dazhong to justice, and asks Zhu Wei for help. Zhu Wei hints for him to find other victims who can testify against Dazhong...朱玮为大忠和一一检验DNA，发现他们是父子关系。原来一一的妈妈被大忠强奸后，生下一一。一一得知，几近崩溃，誓要将大忠绳之以法，问朱玮是否有方法让大忠入狱。朱玮暗示一一找出其他的受害者，指证大忠……。

Ziyuan and Alex bring Wang Wencai, a victim of Dazhong, and his wife, to the swimming pool, where they spied on the interaction between Dazhong and the children. Seeing Dazhong pretending to be kind to the children, Wang Wencai and his wife were furious. They finally decide to report Dazhong to the police. Dazhong was finally apprehended by the police for incest and sexual assault. 紫媛、Alex带着小时候曾被大忠性侵的汪文才和妻子到游泳池，暗中窥探大忠和小孩们的互动，看着大忠佯装慈爱地对小孩们动手动脚...

Ziyuan, Alex, and Wang Qing were in grief over Yiyi's death. Alex remembers Shark's signature and suspects that Yiyi had been killed by the same person. Ziyuan gets Wangqing to steal Circles' accounting records from Zhang Haohui. From the books, Wang Qing finds out that Yi Yi's death was related to Wang Ming and Circles. She questions him, and he confesses that Yiyi died because of her.一一被杀害，紫媛、Alex、旺晴悲痛不已。Alex想起白鲨的杀人模式，认为杀一一的人就是白鲨。紫媛要旺晴与她们合作...

Ziyuan brings the account book to the agreed place to exchange for Youxuan, but Youxuan was not in Wang Ming's hands at all. Edwin appears with a fake Youxuan and tried to steal Ziyuan's account book, but Ziyuan escapes. Wang Ming activates the detonating device in hopes of blowing up Ziyuan to death, but Ziyuan was unharmed. Meanwhile TYF's bookcase suddenly catches fire...紫媛拿着账簿，到约定地点准备交换有宣，其实有宣根本没有在旺明手上。Edwin带着假有宣出现，企图抢走紫媛手上的账簿，却被紫媛逃脱。。。

Ziyuan learned from Shark that it was Wang Ming who ordered the killing of Kaisen. After making sure that Youxuan was safe, Ziyuan takes the real account book to the police, resulting in the arrest of Wang Ming, Zhengde, Zhi'an and others. Shark says that Circles will not disintegrate simply because Wang Ming and Zhengde are caught. Ziyuan begins a new plan to destroy Circles forever! 紫媛从白鲨口中得知，下令杀害凯森的，其实是旺明而不是旺达。紫媛得知有宣安全后，把真账簿拿去报警，导致旺明、正德...