Lin Chuan was burdened with a heavy heart due to the mysterious death of his classmate, and he spent ten years investigating the truth of the case.Due to family changes, Shen Xia and her brother Shen Dong were involved in the whirlpool of crime.As the plot progresses, the duel between good and evil between Lin Chuan and Shen Xia becomes more and more exciting, and the plot of love, hate and hatred is fascinating.

Qiao Dayong, who had been in prison for nine years for assault, was finally released after serving his sentence. However, he was kidnapped just after he was released from prison.On December 6, 1998, the girl Yu Lu died tragically under the Beijiang Bridge. Her father Yu Guocheng had been searching for the murderer for nine years, but made no progress. Therefore, he firmly believed that Qiao Dayong, who had appeared at the scene that year, was the real murderer., so he was kidnapped and prepared for extrajudicial sanctions. 

Lin Chuan, captain of the Biannan County Criminal Police Brigade, rushed to the scene after receiving the alarm. He stopped Yu Guocheng's crime at the critical moment, interrogated Qiao Dayong again, and learned a new clue about the December 6 case nine years ago - Qiao Dayong.Dayong was knocked unconscious at the scene and saw Yu Lu's body when he woke up.

Qiao Dayong found song and dance troupe actor Shen Xia and threatened her with nude photos of Shen Xia. He also claimed that he knew that Yu Lu's death was related to Shen Xia and extorted money from him.Lin Chuan restarted the 12.6 case and found He Xiaoyun, the victim who had been imprisoned for assault by Qiao Dayong, but found that He Xiaoyun attempted suicide at home and her life was hanging by a thread.

After investigation, Lin Chuan found out that Shen Xia's dead brother Shen Dong was He Xiaoyun's fiancé. He also learned that Shen Dong had borrowed loan sharks from Qiao Dayong. In order to force him to repay the debt, Qiao Dayong beat He Xiaoyun until he became insane. Shen Dong alsoThe South died in a shipwreck.At this time, the police found a large number of Qiao Dayong's fingerprints in He Xiaoyun's home.

Nine years ago, in order to help Shen Dong pay off his debts, Shen Xia was compensated by Qiao Dayong taking nude photos.Qiao Dayong's cousin Da Xiong was in urgent need of a loan to expand his store. Qiao Dayong used a dilapidated second-hand car owned by Da Xiong as collateral to obtain a loan of 100,000 yuan from his younger brother Mao Lao Loan. 

At this time, Lin Chuan had determined that He Xiaoyun had been beaten by Qiao Dayong when he broke into the house, and was searching throughout the city.After Qiao Dayong noticed it, he fled everywhere. When he was helpless, Shen Xia asked him to go to the steel plant and escape on a freight train. After Qiao Dayong went there, he was almost killed by the man in black, so he went to Shen Xia's home angrily. When he wanted to take revenge, Shen Xia had already“Dead” brother Shen Dong suddenly appeared.

It turns out that Yu Lu's death was orchestrated by Shen Dong. He faked his death and returned to his home in Biennan after wandering for many years, hiding in the basement to survive, waiting for Qiao Dayong to be released from prison and take revenge.After Qiao Dayong escaped from Shen Xia's home, Lin Chuan, who had been tracking Qiao Dayong's whereabouts all the way, came to Shen Xia's home and brought him back to the team for questioning with the surveillance screenshots of Shen Xia's meeting with Qiao Dayong.

At this moment, Qiao Dayong was found by the man in black again, and was pushed from the roof of the Friendship Building, falling to his death on the spot.Shen Xia told Lin Chuan that Qiao Dayong threatened him with nude photos and wanted to hide in his home. Later, he was afraid that Shen Xia would call the police and ran away. Lin Chuan was suspicious of his words.

Lin Chuan discovered the bones of Wang Tiejun, another suspect in the December 6 case. Wang Tiejun had been scavenging at the crime scene all year round. He suddenly disappeared after the crime. Now that the bones are found, the suspect's identity has also changed to a victim.Daxiong went to the song and dance troupe to find his girlfriend Jiang Ling to borrow money because his workers demanded unpaid wages. When they were pushing and shoving, Shen Xia slapped Daxiong angrily in order to protect Jiang Ling.

After learning about Qiao Dayong's death, Mao Laodi went to look for Da Xiong and demanded a debt of 100,000 yuan. After Da Xiong escaped, Mao Lao Dai went to Da Xiong's residence to stay.At this time, Jiang Ling returned home, only to find that Mao Laodai and others were waiting here and were taken away by everyone.

Mao Laodai brought Jiang Ling back to the company and asked her to contact Daxiong to repay the money. However, Daxiong did not answer the phone. In desperation, Jiang Ling had to contact Shen Xia for help. Mao Laodai had been pursuing Shen Xia for many years and wanted to use this to win over her.However, Shen Xia unexpectedly brought Lin Chuan with him. After Lin Chuan angrily criticized Mao Lao's loan, he learned that Qiao Dayong had borrowed a huge sum of money, and the possibility of murder appeared in the case.

Jiang Ling was disheartened by Da Xiong and decided to break up. However, Jiang Ling, who had nowhere to go, had to go to Shen Xia's house. However, she heard the conversation between Shen Xia and Shen Dong outside the door. Jiang Ling, who was frightened for a while, found Da Xiong again and brought Shen Xia home.The news that Dong was still alive informed Daxiong.

Shen Xia once took Jiang Ling out of the orphanage and stayed in the song and dance troupe. The two were as close as sisters. However, at this time, the song and dance troupe was undergoing selection for overseas performances. Jiang Ling was better than others in skills, but was eliminated by Shen Xia.Mao Laodai found Daxiong and ordered him to repay the money within a week.

After learning that Jiang Ling was defeated, Daxiong encouraged Jiang Ling to go to Shen Xia to ask for an explanation in order to get her performance fees abroad. After Jiang Ling went, she asked Shen Xia if she was afraid that she would be out of control and expose Shen Dong's affairs.However, Shen Xia told her that it was because Jiang Ling was pregnant. Jiang Ling was shocked when she found out.In desperation, Daxiong sent an anonymous text message to Shen Xia to blackmail him about Shen Dong.

Jiang Ling informed Da Xiong that she was pregnant and determined to give birth. Da Xiong was unwilling to take responsibility and did not want to lose Jiang Ling's source of income, so he had to secretly purchase contraceptive pills and secretly give them to Jiang Ling. 

At this time, Shen Xia suspected that the blackmail was done by Da Xiong, so he came to find out the truth. Da Xiong immediately showed his cards and forced Shen Xia to give him money. At this time, Lin Chuan came to investigate and discovered something strange about several people.Decided to investigate Big Bear in depth.In order to seal her silence, Shen Xia prepared cash and asked Da Xiong to meet in Bailingzi. However, on the way there, Jiang Ling's medicine took effect and her abdominal pain became unbearable. Shen Xia learned about it and hurried to Jiang Ling's home.

Jiang Ling was in unbearable pain and couldn't wait for Shen Xia to arrive. She went to the hospital by herself, but accidentally fell down the stairs and fell into a coma.Lin Chuan, who was preparing to conduct an in-depth investigation of Daxiong, went to Jiang Ling and met Shen Xia who was coming. After the two found Jiang Ling unconscious, they rushed her to the hospital. 

But the big bear waiting in Bailingzi was suddenly killed by the man in black and buried on the spot.Lin Chuan rushed to the scene of Da Xiong's murder and found a text message he sent to Shen Xia on Da Xiong's mobile phone, which read: "I know all your secrets".However, when Lin Chuan went to ask Shen Xia, Shen Xia was eloquent and said that she thought the secret Da Xiong mentioned was about her nude photos.

Lin Chuan discovered that the same footprint appeared at the death scene of Qiao Dayong and Da Xiong. This led Lin Chuan to discover that there were only two common clues in several cases, one was the footprint and the other was Shen Xia, and speculated that the murderer's next target was most likely to beJiang Ling therefore arranged for her apprentice Ma Tao to stay outside Jiang Ling's home.

Sure enough, Shen Dong came to silence Jiang Ling, and when pursued by Ma Tao, he ran away in panic. Fortunately, he met Shen Xia who came to deliver food to Jiang Ling, and then got in the car and left the scene.Ma Tao immediately reported to Lin Chuan that he saw % dead Shen Dong. Lin Chuan went to intercept Shen Xia's vehicle, but Shen Dong was missing. It turned out that Shen Dong got off the car halfway and hid in the Wuerkan cargo yard.

Shen Dong hid in Wuerkan and was actually seen by Mao Laodai. Mao Laodai immediately found Shen Xia and said he was willing to help Shen Dong escape, but he hoped that Shen Xia could date him, so Shen Xia had to agree.Just when Shen Dong left under the arrangement of Mao Laodai, Lin Chuan went to Shen Xia's home to conduct a search. At this time, the wonton shop next door suddenly exploded. Lin Chuan went to check and found that the owner of the wonton shop, Jiang Peng, was the owner of the footprint.. 

Lin Chuan immediately launched a hunt for him, and based on the signs, he speculated that Jiang Peng might have a crush on Shen Xia, so he killed Qiao Dayong and Daxiong who bullied Shen Xia. Lin Chuan immediately realized that Jiang Peng's next target might be Mao Laodai.

Jiang Peng rushed to Mao Lao's loan office before Lin Chuan and brutally killed him. When escaping, Lin Chuan led a team to hunt him down. Jiang Peng killed Ma Tao during the escape and then committed suicide by jumping off the building.Shen Dong also failed to escape smoothly and sneaked back to the Wuerkan cargo yard again. 

It's the New Year, and Lin Chuan blames himself for the clues being broken again and Ma Tao's death. Due to emotional problems, he was ordered to take a vacation by Director Qi Wei. Shen Xia also learned on New Year's Eve that Shen Dong failed to escape smoothly.At this moment, the police discovered that Shen Dong had used the alias He Yuan, and had known Jiang Peng in the south. Director Qi Wei immediately issued a wanted order, and Shen Dong was wanted in the Biannan area.

Lin Chuan accidentally revealed to Shen Xia that a man named “He Yuan” was arrested. After hearing this, Shen Xia rushed to Wuerkan to look for Shen Dong, but realized that he might have been tricked and left quickly.Unexpectedly, Lin Chuan had already followed him and immediately blocked Wuerkan. Shen Dong relied on his familiarity with the terrain to escape with difficulty again. 

After escaping, Shen Dong quickly contacted Shen Xia and asked her to escape with him. However, Lin Chuan came to Jiang Peng's wonton shop again and discovered a secret tunnel. He found Shen Dong's hiding place and followed the tunnel to Shen Xia's house.When Shen Xia saw this, he immediately argued.After Shen Dong learned that something happened to Shen Xia, he had no choice but to hijack a bus with a bomb and force Lin Chuan to release Shen Xia.

Lin Chuan quickly locked the bus held hostage by Shen Dong and intercepted it. Then Lin Chuan got on the bus to negotiate with Shen Dong, and seized its flaws to resolve the bomb crisis and arrest Shen Dong.Shen Dong was suddenly interrogated overnight. Knowing that he was doomed, he confessed to what he had done. 

Back then, Shen Dong borrowed a high-interest loan from Qiao Dayong and went to work in the south. Unexpectedly, Qiao Dayong took the opportunity to bully He Xiaoyun and took nude photos of Shen Xia, forcing Shen Dong to come back to repay the debt. Shen Dong returned immediatelyBian Nan seeks revenge on Qiao Dayong, only to find that Yu Lu actually bribed Qiao Dayong with money and asked Qiao Dayong to release Shen Xia's nude photos. Shen Dong immediately killed both Qiao Dayong and Yu Lu and fled to the end of the world.

However, Qiao Dayong was not dead. When he woke up and saw Yu Lu's body, he ran away in a hurry.Shen Dong also sneaked back to the south and rescued Jiang Peng in a shipwreck. From then on, Shen Dong faked his death and fled to the end of the world with Jiang Peng.Before Qiao Dayong was released from prison, the two returned to Biannan and secretly dug a tunnel for Shen Dong to hide.

Shen Dong also cooperated with Jiang Peng to kill Qiao Dayong after he was released from prison. Then Jiang Peng, under the instruction of Shen Dong, killed Daxiong and Mao Laodai.But when Lin Chuan asked about the little white flower in Yu Lu's body, Shen Dong had no idea. For this reason, Lin Chuan still believed that there were doubts in the case where the truth seemed to be clear.

Lin Chuan found several large boxes of Yu Lu's photos from Yu Guocheng. After using technology to enlarge and compare them one by one, he finally found a small white flower sewn on Shen Xia's sleeve in a photo of Yu Lu and Shen Xia.. 

Lin Chuan interrogated Shen Xia and restored the truth of the year. It turned out that when Shen Xia was raped by Qiao Dayong, Yu Lu was knocked unconscious by Qiao Dayong to save Shen Xia. Shen Dong, who had been following him, rushed out and knocked down Qiao Dayong, but was scavenged.Wang Tiejun witnessed it, and Shen Dong had no choice but to kill him in order to silence him. Yu Lu, who suddenly woke up, couldn't help but scream when she saw the murder. Shen Xia covered his mouth and nose to stop him, accidentally killing him by mistake.At this point, Lin Chuan finally solved the 12.6 case completely.