Synopsis
In 1997, a disappearance inside an elevator pulls detectives He Yuanhang and Ran Fangxu into a twisted mystery. Facing doubt and confusion along the way, they press on to uncover the truth. As time moves on, they heal from life's uncertainties, hold fast to justice, and rise above hardship with resilience and hope.
Episodes
Season 11
The Mysterious Father and DaughterOn the 30th of June, 1997, a mysterious father-and-daughter duo arrived at Yuanlongli. They take the elevator to the abandoned 18th floor. When the security guards arrive, they find only the strange traces left behind by the two of them.48m2
Parting WaysRan Fangxu insists on investigating the route of the disappearance on the 18th floor, while He Yuanhang believes that directly searching for the missing people would be more efficient. The disagreement escalates, and the two go their separate ways.41m3
New LeadHe Yuanhang receives a message that someone wants to provide information about the missing father and daughter in person. The informant, Su Yuzhi, says the missing girl is her coworker, Xu Meng.45m4
Investigating the Xu FamilyRan Fangxu discovers the relatives of the Xu family. He decides to split up with He Yuanhang to visit them separately.48m5
Task ForceA theft occurs at the mine, and the precinct is setting up a task force. Ran Fangxu is also assigned to it. However, Ran Fangxu insists on continuing the investigation into the yet-to-be-filed missing persons case of Xu Meng and her father, and even assesses that it may be a homicide.48m6
Beat Around the BushWu Shanlong arrives at Nanshan police station. He Yuanhang and Ran Fangxu beat around the bush to make Wu Shanlong expose himself. Both of them deduce that Song Qingsong ordered Wu Shanlong to hire a hitman to get rid of Xu Meng.48m7
Sweep SearchRan Fangxu and He Xiaohe run into the property manager, Qian Dajun, in the underground parking garage. Qian Dajun claims he is fixing the wiring and carries away an electrician's tool bag. Ran Fangxu uses the Tremaux algorithm to sweep the building and brings He Xiaohe up to the rooftop, where they run into Qian Dajun again.44m8
Split Up and ActionHe Yuanghang and Ran Fangxu found Su Yuzhi. She tells them that Boss Sun's name is Sun Zhengyong, who once tried to keep Xu Meng as his mistress. He Yuanhang and Ran Fangxu split up to find clues about Sun Zhengyong.50m9
Handwritten NoteAfter opening the elevator doors, they see handprints and footprints left inside the lift, along with Xu Meng's handwritten note. They speculate how the father and daughter escaped from the elevator. He Yuanhang and Ran Fangxu return to the police team, where Captain Feng gives them high praise.43m10
Waking UpRan Fangxu visits He Yuanhang's home to have a meal. He is warmly welcomed He Yuanhang asks Ran Fangxu to help him hide the fact that he's returning to the station.42m11
Wu ShanlongHe Xiaohe takes He Yuanhang to a psychiatric clinic. The doctor recommends long-term psychological counselling, but He Yuanhang dismisses the doctor as a fraud and refuses to undergo treatment.42m12
SuspectHe Xiaohe learns that there is an illegal internet cafe in the underground garage of Yuanlongli. The two of them go there, but the cafe owner and the children inside have never seen Han Ziang. However, someone has seen two of the four missing boys.44m13
EvidenceRan Fanxu runs into Wu Shanlong. During the chase, Wu Shanlong panics and falls into a deep pit full of steel bars that pierce through his body.49m14
Secret InvestigationOfficer He keeps thinking that this case is being resolved too easily. So, he decides to investigate it in secret. He finds out about Xu Meng's ex-boyfriend, Wan Qiming. He decides to leave town to look for Wan Qiming.43m15
Fantian TheoremHe Yuanhang notices Xiaohe is discouraged, so he takes out Ran's old book. When Xiaohe opens it and sees the words "Fantian Theorem" written across the page, something stirs in her. She takes the book to the principal's office and says she needs the principal's help to catch the culprit.39m16
Caught Off GuardRan and the others track things to a small convenience store outside the illegal internet cafe. At first, the owner lies and claims that he doesn't know Xiaohe. But Ran senses that something is off and circles back. The owner has no choice but to admit that he has seen Xiaohe. By then, however, Xiaohe has already left the internet cafe.43m17
RescuedAfter Xiaohe is rescued, she finds out that the underground internet cafe has been shut down. She is worried about the four young men who are into esports. She visits them at the detention center with Ran.42m18
Back in TownRan remembers that Wu Shanlong was hit on the back of his head too. He deduces that the culprit might be the same person. Song Qingsong is probably back in town.44m19
Root CauseXiaohe learns that He Yuanhang is no longer hallucinating Ran and realizes he has recovered. She then hands over Ran's belongings to He Yuanhang, telling him that he had collapsed back then after seeing those items.43m20
Back to the StartRan's messages make He realize that he must have found a major clue that can overturn their previous conclusion on the case. He suddenly recalls that in 2002, Ran mentioned the blue leather shoes in case 630 to him...44m21
Important ClueWhile Ran is playfully interacting with Xiaohe, something Xiaohe says suddenly clicks for him. Apart from the blue heels, there is another important clue that has been overlooked, which is the Bowls dress.45m22
Hold Yuanlongli at All CostsHe believes that Ran must have uncovered something in Yuanlongli. He has to withstand the pressure from the demolition team and hold Yuanlongli at all costs.48m23
Origin of the Hand BonesQian Dajun gives the police a full and detailed account of how he found the hand bones. He initially assumes that, after Qian Dajun's arrest, the demolition work at Yuanlongli will be put on hold. Unexpectedly, Jin Manlang is appointed as the new person in charge of the demolition.41m24
ExposedHe exposes Qiao Suqing in front of everyone. Initially, Yao Xincheng purchases Unit 415 under the Yao Baiyuan's name, and later entrusts Qiao Suqing to sell it. However, in 2003, Qiao Suqing re-purchases the property under Yao Xincheng's name.47m25
Signature MoveQiao Suqing's narrative appears airtight, but a forensic report on tissue traces from the blue heels ends up undermining her confession. Just as He and Xiaohe are at a loss, they suddenly discover a common link among several of the death scenes...45m26
Criminal DetentionBased on the evidence in the wooden toolbox, the police successfully put Qiao Suqing in detention right before she could step out of the police station.46m27
The TruthXu Meng's interrogation officially begins. Under everyone's intense questioning, she openly confesses to all her crimes.46m28
The WishFaced with everyone's anger, the murderer shows no remorse and stands her ground. She believes Ran is the one who causes Qiao Suqing to betray her, and thinks she should have killed Ran long ago.45m
The Mysterious Father and DaughterOn the 30th of June, 1997, a mysterious father-and-daughter duo arrived at Yuanlongli. They take the elevator to the abandoned 18th floor. When the security guards arrive, they find only the strange traces left behind by the two of them.48m2Parting WaysRan Fangxu insists on investigating the route of the disappearance on the 18th floor, while He Yuanhang believes that directly searching for the missing people would be more efficient. The disagreement escalates, and the two go their separate ways.41m3New LeadHe Yuanhang receives a message that someone wants to provide information about the missing father and daughter in person. The informant, Su Yuzhi, says the missing girl is her coworker, Xu Meng.45m4Investigating the Xu FamilyRan Fangxu discovers the relatives of the Xu family. He decides to split up with He Yuanhang to visit them separately.48m5Task ForceA theft occurs at the mine, and the precinct is setting up a task force. Ran Fangxu is also assigned to it. However, Ran Fangxu insists on continuing the investigation into the yet-to-be-filed missing persons case of Xu Meng and her father, and even assesses that it may be a homicide.48m6Beat Around the BushWu Shanlong arrives at Nanshan police station. He Yuanhang and Ran Fangxu beat around the bush to make Wu Shanlong expose himself. Both of them deduce that Song Qingsong ordered Wu Shanlong to hire a hitman to get rid of Xu Meng.48m7Sweep SearchRan Fangxu and He Xiaohe run into the property manager, Qian Dajun, in the underground parking garage. Qian Dajun claims he is fixing the wiring and carries away an electrician's tool bag. Ran Fangxu uses the Tremaux algorithm to sweep the building and brings He Xiaohe up to the rooftop, where they run into Qian Dajun again.44m8Split Up and ActionHe Yuanghang and Ran Fangxu found Su Yuzhi. She tells them that Boss Sun's name is Sun Zhengyong, who once tried to keep Xu Meng as his mistress. He Yuanhang and Ran Fangxu split up to find clues about Sun Zhengyong.50m9Handwritten NoteAfter opening the elevator doors, they see handprints and footprints left inside the lift, along with Xu Meng's handwritten note. They speculate how the father and daughter escaped from the elevator. He Yuanhang and Ran Fangxu return to the police team, where Captain Feng gives them high praise.43m10Waking UpRan Fangxu visits He Yuanhang's home to have a meal. He is warmly welcomed He Yuanhang asks Ran Fangxu to help him hide the fact that he's returning to the station.42m11Wu ShanlongHe Xiaohe takes He Yuanhang to a psychiatric clinic. The doctor recommends long-term psychological counselling, but He Yuanhang dismisses the doctor as a fraud and refuses to undergo treatment.42m12SuspectHe Xiaohe learns that there is an illegal internet cafe in the underground garage of Yuanlongli. The two of them go there, but the cafe owner and the children inside have never seen Han Ziang. However, someone has seen two of the four missing boys.44m13EvidenceRan Fanxu runs into Wu Shanlong. During the chase, Wu Shanlong panics and falls into a deep pit full of steel bars that pierce through his body.49m14Secret InvestigationOfficer He keeps thinking that this case is being resolved too easily. So, he decides to investigate it in secret. He finds out about Xu Meng's ex-boyfriend, Wan Qiming. He decides to leave town to look for Wan Qiming.43m15Fantian TheoremHe Yuanhang notices Xiaohe is discouraged, so he takes out Ran's old book. When Xiaohe opens it and sees the words "Fantian Theorem" written across the page, something stirs in her. She takes the book to the principal's office and says she needs the principal's help to catch the culprit.39m16Caught Off GuardRan and the others track things to a small convenience store outside the illegal internet cafe. At first, the owner lies and claims that he doesn't know Xiaohe. But Ran senses that something is off and circles back. The owner has no choice but to admit that he has seen Xiaohe. By then, however, Xiaohe has already left the internet cafe.43m17RescuedAfter Xiaohe is rescued, she finds out that the underground internet cafe has been shut down. She is worried about the four young men who are into esports. She visits them at the detention center with Ran.42m18Back in TownRan remembers that Wu Shanlong was hit on the back of his head too. He deduces that the culprit might be the same person. Song Qingsong is probably back in town.44m19Root CauseXiaohe learns that He Yuanhang is no longer hallucinating Ran and realizes he has recovered. She then hands over Ran's belongings to He Yuanhang, telling him that he had collapsed back then after seeing those items.43m20Back to the StartRan's messages make He realize that he must have found a major clue that can overturn their previous conclusion on the case. He suddenly recalls that in 2002, Ran mentioned the blue leather shoes in case 630 to him...44m21Important ClueWhile Ran is playfully interacting with Xiaohe, something Xiaohe says suddenly clicks for him. Apart from the blue heels, there is another important clue that has been overlooked, which is the Bowls dress.45m22Hold Yuanlongli at All CostsHe believes that Ran must have uncovered something in Yuanlongli. He has to withstand the pressure from the demolition team and hold Yuanlongli at all costs.48m23Origin of the Hand BonesQian Dajun gives the police a full and detailed account of how he found the hand bones. He initially assumes that, after Qian Dajun's arrest, the demolition work at Yuanlongli will be put on hold. Unexpectedly, Jin Manlang is appointed as the new person in charge of the demolition.41m24ExposedHe exposes Qiao Suqing in front of everyone. Initially, Yao Xincheng purchases Unit 415 under the Yao Baiyuan's name, and later entrusts Qiao Suqing to sell it. However, in 2003, Qiao Suqing re-purchases the property under Yao Xincheng's name.47m25Signature MoveQiao Suqing's narrative appears airtight, but a forensic report on tissue traces from the blue heels ends up undermining her confession. Just as He and Xiaohe are at a loss, they suddenly discover a common link among several of the death scenes...45m26Criminal DetentionBased on the evidence in the wooden toolbox, the police successfully put Qiao Suqing in detention right before she could step out of the police station.46m27The TruthXu Meng's interrogation officially begins. Under everyone's intense questioning, she openly confesses to all her crimes.46m28The WishFaced with everyone's anger, the murderer shows no remorse and stands her ground. She believes Ran is the one who causes Qiao Suqing to betray her, and thinks she should have killed Ran long ago.45mCast
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