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A brutal family massacre and the assault of a teenage girl shake Yunxi City. Detective Leng Qiming and rookie Ye Qian uncover links to multiple sexual assault cases — forcing Ye Qian to confront a traumatic memory from his past.

As the team hunts a suspect hiding among construction workers, Ye Qian reconnects with his childhood friend Han Zhao — while a mysterious woman named Danqing resurfaces in his life.

A decades-old cover-up unravels when the real perpetrator behind a historic assault case is exposed. With the killer finally arrested, Ye Qian believes justice has been served — but Danqing’s return raises new questions.

A fleeing murder suspect connected to a previous massacre leaves another body in his wake. As the manhunt intensifies, Leng Qiming discovers the case may stretch across cities.

Cornered and desperate, the fugitive turns violent again — forcing Ye Qian into a dangerous pursuit that ends in bloodshed and arrest.

A teacher is found murdered in her apartment, cryptic messages scrawled on the wall. Evidence points toward someone in the medical field — but the truth proves more twisted than expected.

As suspicions shift between ex-lovers and secret admirers, Ye Qian digs deeper into the victim’s hidden relationships — while Danqing begins maneuvering closer to him for reasons unknown.

DNA evidence identifies a prime suspect, but motive remains elusive. Meanwhile, Ye Qian’s growing connection with Danqing complicates both his emotions and his judgment.

A chilling discovery in a suspect’s home forces Ye Qian to reexamine the case. When new evidence implicates someone unexpected, the investigation takes a sharp turn.

The real killer confesses to a calculated crime of revenge. But before the team can regroup, a gruesome dismemberment case shocks the city.

A gambling addict’s murder leads investigators into a web of greed, betrayal and buried secrets beneath a rural village.

A body pulled from the river reveals links to drugs and illegal surrogacy. As Ye Qian begins an undercover assignment tied to Danqing, the stakes quietly rise.

A diabetic suspect’s death exposes a chain of manipulation and financial desperation. Ye Qian’s mission with Danqing becomes increasingly personal.

What appears to be a murder-suicide involving a wealthy businessman begins to unravel under scrutiny — revealing hidden alliances and insurance schemes.

As suspects fall and betrayals surface, Ye Qian rejects Han Zhao’s feelings — unaware that Danqing is preparing her next move.

Evidence suggests a calculated “exchange killing” plot. Ye Qian realizes the case is more premeditated than anyone believed.

A grieving mother breaks under interrogation, exposing a conspiracy driven by inheritance and revenge.

A confession video reveals a deadly chain of manipulation — but just as one case closes, skeletal remains are discovered in the outskirts of the city.

A decades-old missing persons case resurfaces, exposing human trafficking and forced marriage hidden in a remote village.

DNA evidence connects a missing bride to a suspicious death. As Ye Qian moves deeper undercover, he’s warned the mission could cost him everything.

Ye Qian and Danqing infiltrate a criminal network to retrieve incriminating records — narrowly escaping a violent confrontation.

Three infant bodies are discovered in a city square, exposing an illegal surrogacy ring. Ye Qian earns the trust of drug lord Bao Hei — but at a price.

A fugitive tied to child trafficking turns up dead, revealing a copycat killer targeting criminals from the past.

A teenage suspect driven by revenge nearly falls to his death before confessing. As Ye Qian completes his assignment, Danqing disappears without a trace.

A gambler is found murdered after a suspicious power outage. Evidence suggests a carefully planned revenge killing.

A toxic relationship spirals into homicide as long-buried secrets about abuse and betrayal come to light.

Tragedy strikes when Danqing’s undercover identity is exposed during a major drug bust. Ye Qian refuses to step away from duty — even as he grieves.

A new serial killer begins targeting figures connected to a deadly industrial explosion from years ago.

Clues tie the murders to the son of a factory owner who died in the blast — suggesting a revenge plot years in the making.

With a hostage’s life at risk and a bomb threat looming, Ye Qian races to stop a vengeful killer determined to rewrite the past through destruction.