《Wu Jian Zui》 is a mainland suspense crime web drama launched on iQiyi in 2025. It is directed by Xuan Mengyang, written by Liu Yu and Zheng Shouwei, and stars Sun Jianqi, Cai Xin, Jiang Chuan, Ni Meishi, Gu Yu, Bao Jin and others.The drama has a total of 24 episodes and will be launched on iQiyi on December 5, 2025. It has now been completed.

The story revolves around the 7.21 poisoning and body dumping case in Nanwan City.Interpol Zhu Xiao missed the wedding while investigating the case, and his lover Zhong Qinghe fell to his death due to depression. Zhu Xiao has since fallen into self-blame and confusion.As the case progressed again, he discovered that Zhong Qinghe's death was not simple. Old cases, gangster suspicions, psychological diagnosis and treatment, and the secrets of the Zhong sisters were gradually intertwined.

The series advances the criminal investigation line and the emotional trauma line in the rhythm of a short drama, focusing on the choices of characters such as Zhu Xiao, Lin Hui, Zhong Qinghe, and Zhong Huihui under the pressure of crime.After the truth was revealed, Zhu Xiao also completed his self-healing and regained his faith as a police officer.

Episode 1: The case of exterminating a family and humiliating corpses is full of doubts

A 721 poisoning and corpse dumping case occurred in Nanwan City. Four members of Zhang Xinjiang's family were killed and their bodies were disgraced.Interpols Zhu Xiao and Lin Hui intervened in the investigation and found that the poison came from chicken soup.Zhu Xiao neglected his lover Zhong Qinghe because of long-term case handling, and did not notice her depression.The two men spotted a suspicious woman when they left the scene, and the case began.

Episode 2: KTV owner was killed by acid attack

Zhu Xiao and Lin Hui interrogated Zhou Fangfang and found that she had been detained for retaliating against Zhang Xinjiang for throwing sulfuric acid. After excluding the time of committing the crime, they found out that Zhang Xinjiang KTV was involved in pornography.The police began to arrest relevant personnel. Fang Zhongxin urged Zhu Xiao to take leave to prepare for the wedding, while Lin Hui had a conflict with his family over his father's gift.

Episode 3: My sister loses control and has a crush on her brother-in-law

Zhu Xiao took a vacation to prepare for the wedding, but he was still worried about the case.Lin Hui traces the source of the chicken soup and eliminates the suspicion of the restaurant owner. Zhu Xiao speculates that the murderer may be pretending to be a food delivery person.Zhong Huihui had a crush on Zhu Xiao, and Meng Jianchao became jealous after seeing her thoughts. The emotional rift between the three began to affect the direction of the case.

Episode 4: Bride commits suicide after groom escapes marriage

Zhu Xiao and Lin Hui traced clues to the bar fight and locked in on the suspect with long scars on his arms.Meng Jianchao attacked Zhu Xiao on the wedding day. After Zhu Xiao discovered the scar, he ran away and died in a car accident.Zhu Xiao missed the wedding, and Zhong Qinghe jumped to his death due to rumors and illness.

Episode 5: Sister cures widowed brother-in-law-to-be

After Zhu Xiao learned that Zhong Qinghe suffered from severe depression, he blamed himself deeply. Zhong's father also believed that he indirectly killed his daughter.Lin Hui was promoted to deputy detachment leader for his meritorious service in solving crimes, but Zhu Xiao wanted to resign.Zhong Huihui took care of Zhu Xiao despite her family's objections. Zhu Xiao noticed her feelings and clearly refused.

Episode 6: Brother-in-law is misunderstood and resolved by sister

Zhu Xiao discovered that Meng Jianchao had entrusted Zhong Qinghe to sort out his belongings before his death, and suspected that he knew he would die.He traced Zhong Qinghe's mobile phone records and found Su Xiaoye, a netizen who was also suffering from depression.At the same time, the mysterious man hired Li Daqiang to go to Beigang to attack Zhu Xiao. Lin Hui's unusual behavior aroused the suspicion of the underworld police.

Episode 7: Gloomy man collects girls’ privacy

Zhu Xiao and Lin Hui found Su Xiaoye and learned that she had been deceived and secretly photographed by Sun Yan, and her life was ruined.Zhong Huihui followed Zhu Xiao to Beigang, and the two continued to investigate Su Xiaoye's family and trauma.Li Daqiang drove a truck into Zhu Xiao's vehicle, and Zhu Xiao was injured while protecting Zhong Huihui.

Episode 8: Scumbag seduces his girlfriend into taking private photos

After Zhu Xiao woke up, he suspected that Li Daqiang was the person who killed Meng Jianchao. Lin Hui's dodge made him suspicious.Su Xiaoye recalled that he was secretly videotaped by Sun Yan and abandoned, eventually suffering from depression.Wang Yujia suggested comparing Li Daqiang's DNA, but Lin Hui insisted on returning to Nanwan to handle it in person.

Episode 9: A girl seduces a perverted man into committing a crime

Beigang police discovered Sun Yan's body, and Wang Yujia confirmed that Su Xiaoye was a major suspect.Zhu Xiao entered Sun Yan's residence to investigate and found that his private life was in chaos.Su Xiaoye recalled that he pretended to approach Sun Yan, forcing him to tell the truth about hurting many women, and eventually killed Sun Yan out of hatred.

Episode 10: Police Brothers Black and White Infernal Affairs

After being arrested, Su Xiaoye told Zhu Xiao that Zhong Qinghe's condition had improved and that there might be a hidden reason for his suicide, and reminded him to find a psychiatrist named Fei.Lin Hui failed to extract Li Daqiang's DNA and was blackmailed by a mysterious person.Li Daqiang was silenced late at night, and Lin Hui's suspicion further intensified.

Episode 11: The policeman was almost trapped while trying to save his mother

Li Daqiang's body was found, and the criminal police detachment re-opened the case.Lin Hui's mother relied on expensive special medicines to maintain her life. Lin Hui received a blackmail text message with photos of buried corpses.When Zhu Xiao asked about Li Daqiang's death, Lin Hui reacted abnormally, but still agreed to help him check Zhong Qinghe's call records, and Fei Shuo surfaced.

Episode 12: The police framed the suspected murderer

Zhu Xiao investigated the psychiatrist Fei Shuo and learned that Zhong Qinghe had called Fei Shuo before falling from the building and was told that Zhong Qinghe hated him.Lin Hui secretly tracked down the blackmailer, but was countered by the blackmailer with an empty mobile phone, and was warned that he must collect five million as soon as possible.

Episode 13: My sister turns against her father because of her brother-in-law

Lin Hui once refused Zhang Xinjiang's bribe, but was always under financial pressure because of his mother's serious illness.Zhu Xiao reorganized the clues and thought that Zhou Fangfang might still have something to hide.Zhong Huihui once again wanted to get close to Zhu Xiao, but was coldly rejected. After returning home, she quarreled fiercely with her father, who favored Zhong Qinghe.

Episode 14: My sister loves her brother-in-law but can’t help it

Zhu Xiao found Zhou Fangfang to investigate and learned that Zhang Xinjiang was protected by a criminal police officer.He used this to test Lin Hui, and the relationship between the two parties became even more tense.Zhong Huihui had thoughts of committing suicide because she was rejected by Zhu Xiao. Zhu Xiao stopped him in time, but mentioned Zhong Qinghe again, which made Zhong Huihui feel even more aggrieved.

Episode 15: Dancer Witnesses Burial of Body and Extortion

Zhong Huihui recalled that she met Zhu Xiao earlier than Zhong Qinghe, but eventually lost the relationship.Lin Hui found out that the blackmailer was Zhou Fangfang: she had witnessed Lin Hui burying Li Daqiang's body and took the video.Zhu Xiao also realized that there were clues in Zhou Fangfang's house, but Lin Hui had already taken her away first.

Episode 16: The policeman’s son convinces his father to plead guilty

Lin Hui led Zhu Xiao to the abandoned building, and Zhou Fangfang was indeed tied up at the scene.Zhu Xiao discovered that Lin Qingping was the key mastermind, while Lin Hui had been pretending to be bad and performing secret missions.Lin Qingping was forced into a desperate situation on the roof of the building. After confirming that his son was still a good policeman, he jumped off the building and committed suicide.

Episode 17: The father of the policeman pays to kill someone for money

Lin Hui explained that he prevented Zhu Xiao from investigating the case in order to prevent the operation from being sabotaged and because Zhu Xiao had left the police force.After Lin Qingping killed Li Daqiang, Zhou Fangfang mistakenly believed that Lin Hui had buried the body and extorted money. The police used this plan to expose Lin Qingping's flaws.Lin's mother passed away, and Lin Hui suffered a heavy blow.

Episode 18: My sister confessed to her brother-in-law but was rejected

Zhu Xiao was in agony because of Zhong Qinghe's death, and Meng Demao kidnapped Zhong Huihui to force him to attend the appointment.Zhu Xiao was beaten to save Zhong Huihui, and the two were locked in a refrigerated truck.Zhong Huihui expressed her feelings at the critical moment of life and death. Zhu Xiao still missed Zhong Qinghe before he fell into coma. Finally, Lin Hui led a team to rescue the two.

Episode 19: My sister is obsessed with her brother-in-law and becomes sick

Zhu Xiao confirmed that Zhong Qinghe's death was not simple, and Lin Hui found the real psychiatrist Fei Jie.Fei Jie refused to disclose details due to patient confidentiality, and Zhu Xiao suspected that she had something hidden.Zhong Huihui wanted Zhu Xiao to stop investigating and forget Zhong Qinghe, but she was prevented from falling into deeper pain because of her request.

Episode 20: My sister made a mistake and was instigated to commit murder

Zhong Huihui confessed to Zhu Xiao again but was rejected, and quarreled with her father again. Her childhood experiences of neglect and injury resurfaced.She remembered that Meng Jianchao had always loved her deeply, and also recalled her despair after being hurt by Zhang Xinjiang.Zhong Huihui told Meng Jianchao what happened, and the two walked towards the abyss of revenge.

Episode 21: Zhu Ma sacrifices his life to avenge Qingmei

Zhu Xiao learned that Zhong Huihui and Meng Jianchao had known each other for a long time, and also found out that Zhong Huihui had received psychological treatment with Zhong Qinghe.After Zhong Huihui was violated by Zhang Xinjiang, she wanted to die for a while, but she chose revenge because she was unwilling to do so.Meng Jianchao felt sorry for her and decided to help her kill Zhang Xinjiang.

Episode 22: My sister is the murderer of her sister

The truth gradually came together: Zhong Huihui and Meng Jianchao pretended to be food deliverymen to poison Zhang Xinjiang's family, and then sneaked into the scene to kill Zhang Xinjiang and create the illusion of humiliating the corpse.Although Zhu Xiao didn't want to believe it, he still focused his investigation on Fei Jie.Fei Jie finally agreed to talk to Zhu Xiao.

Episode 23: The elder sister persuades the younger sister to surrender and plead guilty

Lin Hui discovered that Zhong Huihui was also Fei Jie's patient, and Zhu Xiao further locked her into the case.The police concluded from consumption records and earrings that Zhong Huihui was violated by Zhang Xinjiang.Zhong Qinghe once discovered the truth about Zhong Huihui and Meng Jianchao and persuaded her to surrender, but was pushed off the high building during the dispute.

Episode 24: The gangster forced the girl to be sanctioned

When Zhong Huihui tried to silence Fei Jie, Zhu Xiao and Lin Hui arrived with the police.Zhong Huihui confessed the facts of the 721 poisoning and corpse dumping case and the death of Zhong Qinghe, and also admitted that she had threatened Lin Qingping to silence her.After the truth came to light, Zhu Xiao put aside his self-blame, and Lin Hui persuaded him to return to the police force.