Dong Gang closed the door of the small shop and stepped out, carrying a bag of items. Wang Xin and Ma Kui followed closely. Dong Gang possessed strong anti-surveillance skills; he circled the alley multiple times before returning. Swiftly leaving his residence, he clutched a snakeskin bag and discarded it into the trash can.
Observing Dong Gang’s departure, Wang Xin retrieved the snakeskin bag from the trash, only to find it filled with household refuse. Suspicious that someone might be at Dong Gang’s house, Wang Xin and Ma Kui broke into the room. There, they discovered a mentally challenged man restrained to a bed with chains. Heading back to Dong Gang’s small shop, they found it empty—Dong Gang had already fled. It dawned on Wang Xin that his rummaging through the garbage had alerted Dong Gang.
Seeking clarity, Wang Xin and Ma Kui visited the local police station. They learned that Dong Gang’s brother, the man tied up in the room, suffered from mental illness. When Wang Xin attempted to communicate with him, the brother’s responses were incoherent. Upon the police’s arrival, the brother became agitated, repeatedly asserting his innocence regarding any murder.
The homeless man was picking up things in the trash can and suddenly found a bag of stumps. The police took the stumps back for comparison. Wang Xin and Ma Kui came after hearing the news and confirmed that the stumps belonged to Ding Gui'an. At this moment, the police arrested Dong Gang. Dong Gang truthfully confessed his crime. Two years ago, Dong Gang accidentally killed someone. His younger brother was frightened when he saw this scene. Dong Gang sent his younger brother to prison before he was imprisoned. He went to the mental hospital and took his brother home after he was released from prison. Dong Gang knew nothing about Ding Gui'an's case, but Ma Kui saw that he was not lying.
Jia Jinlong came to see Wang Xin. Wang Xin was not at home when he was working on a case, so Jia Jinlong stayed in the yard. When Yao Yuling came home from get off work, Jia Jinlong gave her back the button she picked up last time, praising her for her beauty again and again. Leave her contact information to Yao Yuling, who has a good impression of Jia Jinlong.
Niu Dali wanted to assemble a radio cassette player to please Yao Yuling. He disassembled all the parts of the old radio cassette player and studied them. He also found a professional repairman to learn the technology, and then he spent all day and night welding and assembling it. Ma Yan made the dumplings with her own hands and asked Peng Yongli and Ma Jian to deliver them to Wang Xin. Unexpectedly, Ma Kui changed the dumplings into pieces of dough and did not allow Ma Yan and Wang Xin to interact. Ma Yan did not listen at all. marry. Wang Yongge mixed the dumpling fillings and rolled the dough into dumplings. He advised Wang Xin to give up on Ma Yan as soon as possible. Ma Kui would not marry Ma Yan to him. Wang Xin didn't care about Ma Kui's attitude at all, so he was sure of Ma Yan. .
When the passenger woke up, he found that his pants had been slashed and the money in his underwear pocket had been stolen. He was so anxious that he exclaimed loudly. In the past few days, more than a dozen passengers had been stolen. The crime was very skillful. The thief was elusive and left no clues. Captain Jiang gave the policemen a death order to catch the thief king as soon as possible.
Wang Xin analyzed that the thief king was at least in his fifties, and he vowed to arrest this person. Little Wenzhou was selling sunglasses on the train from Ningyang to Harbin. His sharp tongue attracted many passengers to rush to buy. Wang Xin reminded Little Wenzhou to beware of thieves. The old blind man smelled a familiar smell on the train. He recognized that it was his daughter Duo'er, and followed the girl to get off the train at Haihe Station. The girl took the old blind man as a bad guy and left quickly with her father. Seeing this scene, Ma Kui sympathized with the old blind man.
Jia Jinlong came to see Wang Xin and Ma Kui again. Ma Kui personally cooked a table of dishes to entertain Jia Jinlong. Wang Xin found that Jia Jinlong had been coming too frequently recently, and Jia Jinlong made excuses to cover up. After the meal, Jia Jinlong said goodbye and left. He looked around the courtyard and saw Yao Yuling's clothes hanging on the second floor, guessing that it was Yao Yuling's home.
Yao Yuling went to the store to buy new clothes. Niu Dali persuaded her to save some flowers. Yao Yuling was very dissatisfied. She was going to Harbin to play. Niu Dali wanted to accompany her, but Yao Yuling politely declined. Ma Kui and Wang Xin took the train from Ningyang to Harbin to investigate for several days, but found nothing. Ma Kui returned from a business trip and found that Ma Yan was not at home. When Ma Kui met Shen Xiuping when he went out, he wanted to give her some money and food stamps to thank her for helping take care of Ma Jian, but Shen Xiuping refused to accept it.
Ma Kui went to Wang Xin to inquire about Ma Yan's whereabouts, and learned that Ma Yan had gone to attend a classmate's wedding. Wang Xin also regarded himself as Ma Yan's boyfriend, and Ma Kui was so angry that he gritted his teeth.