In the spring of 1991, Shuangta City was still immersed in winter. This is a northern city located remotely and close to the border. Dense forest and cold are synonymous with it. When he was a child, Bai Shizhou witnessed the murder of his family, and he deeply engraved the murderer's face in his mind. Soon after the case happened, Zhou You, who lost his mother since childhood, was taken away from the Twin Towers by his father Zhou Pingyuan and settled in Beijing. Zhou You has not been close to his father. When he grew up, Zhou You gave up his father’s job in the hospital and chose to work in a funeral home. As an enchanter, he also works part-time as a forensic doctor.
Zhou Yu, who was sleeping in the bed next to the female corpse, was awakened by the phone, and his assistant Xiaohou asked him to get up and pull a corpse. When traveling to the deceased’s home, he discovered that the death certificate provided by his family was forged. He also found that the deceased had traumatic signs of death, so he called the police, and Li Huiyan, who received the police, met with Zhou You for the first time.
Interpol Li Huiyan lives with his son Li Gen. In order to install an indoor bathroom, he digs a ditch at the gate of the courtyard. For this reason, the neighborhood committee and neighbors often look for him, but Li Huiyan can only deal with it perfunctorily every time. The workers who donated money to Li Huiyan for this project ran away. Li Huiyan, who was struggling with no money, had no money to hire people to do the construction, but he was unwilling to give up. Li Huiyan asked a colleague to borrow money, but everyone was not rich, and there was no money left to borrow him.
Middle school student Li Gen has a good female classmate, Fan Xiaoyuan. Although the two often hurt each other, their friendship is not affected. After the school arranged the physical examination that day, Fan Xiaoyuan and Li Gen ate the shabu-shabu on the street, while complaining that their parents were too strict.
On the way home with the two after the meal, the delicate fan Xiaoyuan always felt that someone was stalking herself. Sure enough, there was someone behind her named Fan Xiaoyuan. They turned around and saw a man wearing a werewolf plush mask. This man said nothing. As soon as Fan Xiaoyuan left, Li Gen was dumbfounded, watching Fan Xiaoyuan being stuffed into a white van. Before the van left his sight, Li Huiyan happened to ran into Li Gen on the way home. Li Gen told Li Huiyan about the matter, and Li Huiyan chased him out on his bicycle. Although Li Huiyan galloped all the way, but in the end he could not catch up with the van.
Fan Xiaoyuan in the van struggled but was trapped by the kidnappers. The kidnapping gangster was named Na Hai, and the other accomplice who drove to meet him was Barth. Before that, another accomplice of the two, Lao Qi, received the kidnapping business from Ding Yongli. A man had a blood transfusion in a secret room. He yelled to eat meat and asked when the child could come. This man was Ding Yongli’s eldest brother Wu Deshui. Wu Deshui suffered from a rare blood disease. He ordered Ding Yongli to hire someone to kidnap him. Fan Xiaoyuan, because Fan Xiaoyuan's blood can bring him life.
Zhou Pingyuan asked Zhou You to go home for dinner and asked him to work in the hospital. Zhou You was very impatient and said that he was very busy at night and didn't know when he could go home. It was really busy that night traveling around. Zhou Pingyuan, who was alone at home, heard the vinyl record. Under the cover of Beethoven’s performance, a man sneaked into Zhou Pingyuan’s home. He strangled Zhou Pingyuan’s neck and gave Zhou Pingyuan a back. A tube of medicine was injected, and then Zhou Pingyuan stopped struggling. This man was Bai Shizhou back then. Zhou Yu, who was about to leave work, was preparing to go home. The assistant asked him to do another mission before leaving get off work. Zhou Yu came to the mission site and found that the corpse carried this time was his father. Zhou Yu did not express his emotions. He only silently took the corpse. Back to the car.
Fan Xiaoyuan’s parents run a breakfast shop. After the only daughter of the family, Fan Xiaoyuan, was kidnapped, the two found Li Huiyan. They took the money and asked Li Huiyan to rescue his daughter. Li Huiyan did not collect the money. He said that he would do his duty as a policeman. Fan Xiaoyuan brought it back.
According to the license plate, the police locked up an abandoned thermos factory, when the two kidnappers were taking Fan Xiaoyuan to rest here. The lights of the police car made the two vigilant. The fierce kidnapper took Fan Xiaoyuan and retreated. Under the cover of the moonlight, the kidnapper wounded the criminal captain and a police officer. Just when Li Huiyan was about to catch Barth, Nahai stunned him behind Li Huiyan. Li Huiyan, who woke up, saw the colleague who was taken away by the ambulance, and the two kidnappers escaped again with Fan Xiaoyuan.
Bai Shizhou got on the bus bound for the Twin Towers, and the kidnappers who kidnapped Fan Xiaoyuan deceived a box cargo full of live chickens at the highway entrance.
According to the real license plate of the van, the police found that the van was from Shuangta City. After receiving the notice, the traffic police immediately set up cards along the way. Naturally, the container could not escape, but Nahai tightly covered Fan Xiaoyuan’s mouth in the compartment. Coupled with the noisy cock crows, the container finally drove away successfully.