During the Republic of China, Shanghai was in turmoil, and Mr. Guo, a senior patrol official, died mysteriously. Private detective Chen Yiming was entrusted by Mrs. Guo to investigate the murder of Mr. Guo. Chen Yiming came to the scene of the murder to investigate, guessed the specific characteristics of the murderer, and concluded that this was a murder. Chen Yiming went to ask the theater leader and accidentally discovered that Zhao Mingruo in the theater had very similar characteristics to the murderer. Chen Yiming came to the theater again to see Zhao Mingruo, but Zhao Mingruo died. The police arrested Chen Yiming and suspected that he was the murderer of Zhao Mingruo.

Zhang Tianxiao was inspecting the murder scene. Zhang Tianxiao noticed something was wrong, so he teamed up with the police and successfully caught the woman. Chen Yiming was imprisoned, and Yao Fei was also imprisoned. Chen Yiming believed that Yao Fei was definitely not the murderer. Director Gao bailed out his adopted son Chen Yiming, and at the same time Chen Yiming begged his adoptive father to release Yao Fei. Zhang Tianxiao made a bet with Chen Yiming on who could catch the murderer first. Chen Yiming and Yao Fei came to the newspaper office and asked why the puzzles published in every issue of the newspaper were previews of the Facebook murderer. The president was also confused.

Under pressure, Zhang Tianxiao decided to cooperate with Chen Yiming. Chen Yiming said that through his investigation, the potential commonality among the deceased persons was that they were boys, and the murderer was most likely one of the boys who disappeared that year. The newspaper editor showed the anonymous letter to Chen Yiming and others, and they quickly determined that the next victim was factory director Zhou Qiru. Chen Yiming and Yao Fei got inspiration from Director Gao and discovered that there was a major suspicion in the rebirth. Chen Yiming never expected that all of this was secretly planned by Jiang Hanzhi. In fact, he was the real mastermind behind the scenes.

蒋涵知命一名刚被释放出狱的杀手去杀一名男子，陈一鸣全然不知蒋涵知的真面目，还饶有兴致地与其见面聊天。陈一鸣得知沈雪未婚夫强威可能出事，于是立刻前往强威家。巡捕砸开了强威家的大门，发现他早已死去多时，明显死于他杀。陈一鸣分析真正的致命伤是凶手用电话线勒其脖子窒息而死，并觉得应该是仇杀。陈一鸣告诉张天笑和姚菲，有一个叫强威的年轻男子死于非命。

Chen Yiming came to the prison, and Zhou Ziwu argued that he did not kill anyone. Chen Yiming asked Zhou Ziwu where the gun came from, and Zhou Ziwu told the truth. After listening to Zhou Ziwu's words, Chen Yiming felt that he should not be the murderer. Chen Yiming invited Zhang Tianxiao, Yao Fei, Director Gao, and Detective Jia to the detective agency. He used practical actions to calculate and prove that Zhou Ziwu was not the murderer. Detective Jia gave Chen Yiming three days to catch the murderer. Zhou Ziwu relied on his vague impression to draw the appearance of another stalker, which also gave Chen Yiming a reference.

According to Zhou Ziwu's description, Xiaoka drew a portrait. The murderer Fang Liu was at the train station, and the thief Chen Fei stole his wallet. Yao Fei and Zhang Tianxiao came to Qiang Xiaobin's house to inquire, and the old housekeeper reminded them to investigate the suicide case 20 years ago. Chen Yiming came to the prison, and the prison staff told him that Fang Liu had been released from prison. Yao Fei took out the portrait drawn by Xiao Ka, and the staff immediately recognized it as Fang Liu. Chen Fei saw the wanted notice and told Chen Yiming that Fang Liu was going to leave by train. Fang Liu was captured. After interrogation, Fang Liu truthfully confessed the crime.

Chen Yiming and Yao Fei went to Shen Xue's house together. Chen Yiming noticed a tablet on the table and guessed that Zhou Ziwu's sister was Zhou Chongwen. Gao Linsheng informed Chen Yiming that Jiang Hanwen was responsible for investigating the rape case and later died in the line of duty. Chen Yiming prevented Zhou Ziwu from being released from prison. He told the truth about the night of the crime in front of everyone, so Zhou Ziwu killed Fang Liu and then committed suicide. Chen Yiming hurriedly rushed to Shen Xue's house with Zhang Tianxiao and Yao Fei, and saw Shen Xue committing suicide with a gun. Chen Yiming knocked down her gun, and Shen Xue told the whole truth.

An old lady came to report the crime. The old lady said that a tenant had been in arrears with rent, so she came to ask Chen Yiming for help. According to the old lady, the tenant’s name is Li Zhiyuan, a teacher and a lonely person who has been acting very strangely recently. Chen Yiming and others began to study Li Zhiyuan. They thought that Li Zhiyuan had reported the case, so they got up and went to the patrol room to search for the case. Zhang Tianxiao came to the casino through the lottery station and found that he had won the grand prize. However, everyone in the casino insisted that today was the 26th, and Zhang Tianxiao's lottery ticket was the 25th, so the grand prize was naturally invalid.

Zhang Tianxiao left the casino in doubt and returned to the detective agency, where he discovered that today was really the 26th. Chen Yiming and Yao Fei followed Zhang Tianxiao to the lottery station again, and then arrived at the casino. Chen Yiming took out Li Zhiyuan's photo and asked the lady at the front desk. The lady at the front desk said that she had never seen Li Zhiyuan. Chen Yiming asked Zhang Tianxiao to recall what happened yesterday, but the only one who left a deep impression on Zhang Tianxiao was the girl in red. Chen Yiming and Yao Fei visited Gao Linsheng's home. Chen Yiming mentioned the mystery of Li Zhiyuan's disappearance to Gao Linsheng, and Gao Linsheng told Chen Yiming about the Bermuda Triangle.

Chen Yiming found Li Zhiyuan's body on the rooftop and was very confused. Chen Yiming speculated that Li Zhiyuan must have bought a lottery ticket and was deceived. He mistakenly thought that he had traveled through time and wanted to go back to claim the prize, but was electrocuted to death by lightning. Chen Yiming and others went to the casino to find out what was going on. Inspector Jia also gambled heavily here. Detective Jia and Boss Huang are dealing with each other, and Boss Huang seems to have some handle on Detective Jia. The girl in red warned Zhang Tianxiao not to go to the casino again. Zhang Tianxiao insisted on asking for an answer, so the girl had to ask him to meet on the roof of Huizhong Building tomorrow.

Chen Yiming asked Gao Linsheng if he knew the casino owner Huang Rong. Gao Linsheng said that the network of connections behind Huang Rong was very complicated. Yao Fei could see what Xiao Ka was thinking about Zhang Tianxiao, which made Xiao Ka a little embarrassed. Yao Fei told Xiaoka that the reason why Zhang Tianxiao likes the girl in red may be because that girl has a sense of mystery. Zhang Tianxiao went to fulfill the agreement made by Xin Rui, the girl in red, and Yao Fei followed closely. The two of them found a casino thug on the rooftop of the building who was poisoned and had a needle hole in his neck. Zhang Tianxiao was afraid that Xin Rui would be harmed, so he decided to visit the casino again.

Chen Fei, Chen Yiming and Yao Fei came to Huang Rong's casino. Yao Fei inadvertently stole Huang Rong's key and transferred the key to Chen Fei. Chen Fei rescued Zhang Tianxiao. In another room, Xin Rui's mouth was tightly sealed with a piece of cloth, and her hands and feet were tied so that she couldn't move. When she heard the movements of the three people, she screamed anxiously. Chen Fei heard the cry and successfully found Xin Rui. The bandage on Xin Rui's mouth was removed, and she told her that the so-called time travel was actually a scene set up by the casino owner. As soon as Xin Rui finished speaking, she suddenly saw a thug shooting at Zhang Tianxiao. Xin Rui stood in front of Zhang Tianxiao and was seriously injured because of him. Huang Rong realized something was wrong and planned to escape with his property. Chen Yiming and others decided to retaliate and eventually brought Huang Rong to justice.

On the brightly lit stage, a magic show kicked off. When the red curtain was opened, a naked human body was found in the water tank. The magician died suddenly on the spot. Inspector Jia hurriedly came to Chen Yiming and others and informed them that a magician had died mysteriously. Chen Yiming, Yao Fei, and Zhang Tianxiao went to check the situation. Chen Yiming analyzed that the murderer was hiding in the vent and used a hook to lift the entire cage into the sky. The murderer would wait a few days before creating the illusion of an accident. Jiang Hanzhi was eager to get rid of Huang Rong's imperial green jade, so he went to find someone for help, but he was threatened instead.

Chen Yiming speculated that the person who killed Master Liu might be a competitor in the magic world. Inspector Jia said that there have been several murders of magicians in recent years, and told Jin Ruilong that he was very suspicious. Inspector Jia took Chen Yiming and others to the prison to find Jin Mingjue. Zhang Tianxiao suspected that this person was not Jin Mingjue, so the prison guard reported truthfully that Jin Mingjue disappeared out of thin air more than a month ago. Chen Yiming speculated that Jin Ruilong helped Jin Mingjue escape from prison, and the two teamed up to kill Master Liu. Jiang Hanzhi entered the archives room of the patrol room, but was discovered by a policeman, so he blinded the policeman with an umbrella.

Mengling is about to perform a lightning magic trick. Xiaoka is very curious. Zhang Tianxiao guesses that there must be an insulation device in the house. Chen Yiming, Zhang Tianxiao, and Yao Fei went to the magic troupe and found a female magician named Bai Wei. This person had dealt with Jin Ruilong, and Chen Yiming wanted to get some clues from her. Bai Wei thinks that Jin Ruilong is a very good person and does not believe that he can be the murderer. Chen Yiming asked Bai Wei if there was any interaction between Jin Ruilong and the recently deceased Master Liu. Bai Wei shook her head. She had never heard Jin Ruilong mention this person. Yao Fei and Chen Yiming discussed the case. She always felt that the criminal was around, but there was no trace.

Zhang Tianxiao learned that Xiaoka's family members died in a tragedy fifteen years ago, and Chen Yiming placed Xiaoka in an orphanage. The phone rang in the cafe. It turned out that Mengling was asking Chen Yiming to discuss Jin Ruilong's case in detail. The four of them first watched Mengling's magic show, but unexpectedly, Mengling was burned on the spot. Chen Yiming bumped into Chen Fei at the scene and accidentally got a gold coin. Gu Or, who was in charge of the props, suddenly ran away and tried to shoot Chen Yiming. Chen Yiming concluded that this person was suspicious. Hong Kong female magician Luo Na is about to perform on stage. She dismisses the recent murder case, but Chen Yiming is very worried.

Chen Yiming investigated and found that Gu or went to the theater to work as a handyman. The attentive Yao Fei discovered a secret passage in the theater, and Chen Yiming ordered people to guard the entrance of the passage. Luo Na performed on stage and got into the water tank to start the countdown. As the prologue kicked off, Gu Or appeared in the water tank. Chen Yiming noticed something was wrong and was surprised to see Jin Ruilong and Jin Mingjue standing together, with an unharmed Luo Na next to them. Chen Yiming just wanted to catch these people, but Jin Ruilong used a magician's trick and escaped instantly. Everyone finally found the unconscious Gu Yu in the storage room, and Jin Ruilong left a letter telling his grudges with Gu Yu.

Chen Yiming had a dream within a dream, with all the usual suspicious appearances. Zhang Tianxiao took Chen Yiming to see a doctor, and Chen Yiming followed him in confusion. The doctor hypnotized Chen Yiming. Chen Yiming was confused and seemed to see himself as a child. Chen Yiming trembled and suddenly found himself talking to Zhang Tianxiao. Zhang Tianxiao investigated Song Xinrong's background. Chen Yiming woke up again in a daze, only to find that he was still sitting in the doctor's chair. Chen Yiming collapsed completely. He couldn't distinguish between dreams and reality.

Zhang Tianxiao told Chen Yiming that Song Xinrong was the most famous rich man in Shanghai, but he shot himself and died a week ago. Song Xinrong told Chen Yiming that he finally dreamed of shooting himself here, and Chen Yiming was very confused. Song Xinrong smiled bitterly and said that someone had transplanted some kind of suicidal consciousness into himself, so he wanted to ask Chen Yiming to investigate. Chen Yiming woke up from his dream when he heard Song Xinrong's strange words. The scene where he shot and killed Song Xinrong vaguely appeared in his memory. Chen Yiming could not escape the nightmare. He seemed to see countless people accusing him of killing Song Xinrong.

Chen Yiming somehow came to a movie theater. Only Yao Fei was watching seriously. Yao Fei was in Chen Yiming's ear, encouraging him to wake up quickly. Chen Yiming was running aimlessly on the street. Detective Jia was holding a pistol and chasing Chen Yiming closely. Chen Yiming and the housekeeper were running in the heavy rain, but Jiang Hanzhi shot Chen Yiming down. Song Xinrong was killed by Xu Fulin and Mrs. Song in conspiracy. The Song Xinrong Chen Yiming met before was Xu Fulin pretending to be. Chen Yiming was accidentally shot. This long dream was caused by his serious injury and coma.

Chen Yiming finally regained consciousness after being injured. Yao Fei and Xiao Ka came to take care of him, and Zhang Tianxiao also accompanied him in the ward. Zhang Tianxiao and three others were about to go to a Japanese food store, but the store owner, Mr. Mita, died mysteriously. Yao Fei judged from the wound on Santian's neck that the murder weapon should have been projected from a long distance and had cyanide smeared on it. Zhang Tianxiao also found that the switch had been tampered with. Yao Fei suggested starting with the murder weapon, and soon found the darts coated with potassium cyanide. Detective Jia pointed the finger at the young man, and the young man defended himself repeatedly, so Detective Jia became suspicious of the man in sunglasses.

Everyone found that one eye of the man in sunglasses was blind, but the other was normal. Zhang Tianxiao identified this man as the killer Xiao Meihua. Xiao Meihua stood up and was about to leave. Yao Fei and others swarmed up and subdued Xiao Meihua. Xiao Meihua denies that she killed anyone. It was Santian who recently received a threatening letter and asked her to protect his safety. Zhang Tianxiao suspected that Xiao Ka was suspicious. Xiao Ka truthfully told him that he was not the murderer, so Zhang Tianxiao asked Chen Yiming for help. Xiaonan admitted that he was the murderer, and the motive for committing the crime was that Mita led the Sakura Club to massacre his entire family.

Chen Yiming's father once led a group of brothers to make trouble, but there was a rebellion within, causing the brothers to kill each other. Jiang Hanzhi told Chen Yiming that he recently rescued a strange old man, and the old man left a metal box behind when he left. Jiang Hanzhi found that there was a compass and a Dragon-Shaking Scripture inside, and guessed it must be related to the ancient tomb. Chen Yiming believes that only by finding the original version of the Dragon Shaking Scripture can the mystery be solved. Chen Yiming, Zhang Tianxiao and Yao Fei received anonymous invitations one after another. Everyone looked at each other in confusion and didn't know what they meant, so they decided to go to Sunset Villa to find out the truth.

When everyone came to the Sunset Villa, they found that there was a strong smell of paint inside. According to the servant, this was specially repaired by the owner to welcome everyone. The guests arrived one after another. In addition to Shen Tai and Huang Lingshan, there was also the young detective Ma Feiyu. Everyone found dried blood on the painting, and Chen Yiming's childhood scene suddenly flashed through his mind, where his father's men killed each other, as if it were the villa in front of him. Everyone became more and more panicked. Chen Yiming analyzed that they were all gathered together, indicating that there must be some kind of connection between them.

Gao Linsheng pointed out that he was in charge of this case back then, and most of the jewelry on site was missing until he recently received an anonymous invitation letter. The mysterious man invites everyone to play a game. As long as someone cracks the treasure location, he will send him away safely. Yao Fei carefully looked at Chen Yiming's old photos and found that there were clues on them. Everyone was about to look for clues, but saw Shen Tai falling to the ground with rapid breathing, and the doctor also touched the mechanism and caused an explosion. Ma Feiyu suspected that Gao Linsheng was the mastermind behind the scenes, and Gao Linsheng dealt with Ma Feiyu without any explanation.

Chen Yiming wanted to know what happened that year, and Gao Linsheng told Chen Yiming excitedly. Chen Yiming finally took action against Gao Linsheng, and he quickly contacted the mysterious person. A mysterious man appears, and he turns out to be the doctor who was "burned to death." When the doctor walked to the hall, Chen Yiming had already seen through his tricks and exposed them one by one. The doctor suddenly pulled the switch, and an explosion occurred in the entire living room. The doctor tore off the mask on his face. This person turned out to be Chen Fei pretending to be. Chen Fei and Jiang Hanzhi were actually the same person. Chen Fei claimed that his father was patrolman Jiang Hanwen, and he had a grudge against everyone here.

Gao Linsheng was seriously injured after being hit by the explosion. On his deathbed, he told Chen Yiming about his relationship with his father. Inspector Jia and his people arrived in time and rescued everyone from the mess. Chen Fei left a book in the cafe and left. Chen Yiming opened it and found the words "Vendor Chen Han". Inspector Jia realized that Yao Fei was not a good person and subconsciously drew his gun. Only then did Zhang Tianxiao and Chen Yiming realize that Yao Fei was from the Sakura Club. Chen Yiming was willing to risk everything as long as Yao Fei would go with him, but Yao Fei still pulled the trigger. At the critical moment, Zhang Tianxiao pounced on him.