On a rainy night with thunder and lightning, in the medical school staff building, the water delivery worker knocked on the door of doctor Zhang Li's house and was shocked by the scene in front of him. The bright red blood was slowly flowing from the door to the corridor... This was a vicious murder case. The victim Zhang Li and her six-year-old daughter Xiaomeng were brutally murdered in their own home. The house was in a mess and the money was robbed. The scene was bloody and unbearable to watch. The only clue left at the scene was that Zhang Li wrote a word in blood on the mirror before she died... Jiuan City Public Security Bureau quickly set up a murder case detection team headed by Zhang Dong. After arduous and meticulous investigations day and night, the police finally targeted the criminals on two mysterious men, one tall and one short. According to the cigarette butts left at the scene, DNA analysis showed that the criminal was a drug addict. Through various clues, it was finally determined that the tall suspect was named Lei Biao, but all signs showed that Lei Biao was just a follower and he obeyed the orders of the short accomplice. The police found that the short man was extremely smart and his several escapes from the police were carefully designed. Who is he? Lei Biao appeared. Zhang Dong led the police to Lei Biao's house at a high speed upon hearing the news, but they found nothing. Lei Biao and his accomplices did go home to get the money, but they had left earlier. The police chased him all the way and finally found Lei Biao in a secluded town. The police appeared in front of Lei Biao, who was stunned and shouted like crazy, "Brother, run away, I was caught by the police!" Zhang Dong chased him after hearing the sound. Because he was concerned about the safety of the people, he did not dare to shoot randomly. He watched a short and thin back escape in the crowd... Zhang Dong was very angry and vowed to bring the criminal to justice. In the interrogation room, Lei Biao kept silent and cheated with the police. Zhang Dong made a puzzle of the little man based on the impression left during the tracking and the description of Lei Biao's family. After multiple investigations, the little man's face finally became clear. His name was Yang Bing. Before the incident, he was the owner of Yunshan Hotel and owed a huge amount of money due to gambling. Zhang Dong and others immediately rushed to Yang Bing's home in Pingshun County to understand the situation. Zhang Dong saw that Yang Bing's wife Miao Qiuyun had concealed many circumstances of Yang Bing's escape from the police. He appealed to her emotions and reasoned with her in the hope that she would cooperate with the police, but Miao Qiuyun insisted that she knew nothing about it. Miao Qiuyun shouldered the burden of supporting the family. Her son was demented, her daughter was young, and she also had to take care of her elderly and sick father-in-law. The pressure of life was huge. The police lent a hand when they needed help the most, hoping to awaken the Yang family with justice, which made Miao Qiuyun fall into a contradiction... At this time, Yang Bing had disappeared for half a year. There was nothing unusual in the Yang family. Zhang Dong evacuated from Pingshun County, secretly leaving multiple sentries and spies to keep a close eye on the Yang family. The Jiu'an Intermediate People's Court sentenced Lei Biao in accordance with the law. At this time, Yang Bing appeared again and remitted money to his family. At this time, Miao Qiuyun was still struggling in pain. She felt guilty about the victim's family, grateful to the police, and hoped that her husband would be safe. All these made her inner contradictions unbearable. Miao Qiuyun finally realized that Yang Bing could only save everything by surrendering himself. She confessed the hidden facts to the police of the task force... Zhang Dong received a clue that Yang Bing was currently hiding in Yinchuan, Ningxia. The police rushed to arrest him. However, when Zhang Dong arrived in Yinchuan, the cunning Yang Bing left early again. After that, Yang Bing fled in fear all the way to Guizhou, Hubei, Shandong, Northeast China and other places. He worked as a beggar, a migrant worker, a rogue... In order to get a legal identity, he even married illegally. But no matter how Yang Bing hid, the police's pursuit was getting closer and closer, which made him panic all day long. No matter how Yang Bing played tricks, he still couldn't escape Zhang Dong's eyesight. In fear, he panicked and cheated a sum of money and secretly had a plastic surgery. Zhang Dong found clues about all this... After the plastic surgery, Yang Bing fled to a small border city. He vowed to live a new life with a new face, make a lot of money and become a rich man, and get rid of the inner torture of fear. Yang Bing worked in an entertainment city. With his shrewdness and ability, he was appreciated by the boss and reused. This gave Yang Bing a glimmer of hope for success. He did everything he could to make his business bigger and bigger. One year later, he became a local tycoon. The police did not relax their pursuit. When Yang Bing saw the wanted order in the small city, he was terrified. In order to get rid of the police, he came up with a plan and found a beggar as a scapegoat, so that the police thought he had died on the way to escape, hoping that "Yang Bing" would disappear from the world. However, all this was discovered by Zhang Dong again. He saw that this was just another trick played by Yang Bing, so Zhang Dong simply played along with it... Although he spent his days in debauchery, Yang Bing still couldn't escape the psychological torture of committing crimes and killings. The huge fear made him feel like he was living a year. After a long time, he found that only Miao Qiuyun and the child could bring him a sense of security. Yang Bing made a desperate move and made a series of arrangements at the border. He also sent people to his hometown to kidnap Miao Qiuyun and the child, preparing to flee abroad. Miao Qiuyun saw Yang Bing in tears and begged Yang Bing to surrender. At this time, Yang Bing's state of panic was close to madness, and he insisted on taking his wife and children to flee abroad. Just as they were arguing, Yang Bing was stunned. Zhang Dongzheng led the police officers to appear in front of him. It turned out that the police had not relaxed their pursuit of Yang Bing. Zhang Dong had found the doctor who performed plastic surgery on Yang Bing based on the clues, and had a full grasp of Yang Bing's new appearance. At the same time, he was secretly controlling Miao Qiuyun's every move. So far, after the police's unremitting pursuit, the cunning criminal Yang Bing, who had committed a murder and fled for three years, finally could not escape the net of justice. In the detention center, facing Zhang Dong's stern eyes, Yang Bing finally lowered his head and made a final confession: People cannot commit crimes, let alone make mistakes again and again, otherwise they will embark on a road of no return. Justice will inevitably defeat evil.