Twenty-seven-year-old Su Xi comes from a police family and is a sharp-eyed "hunter" on the anti-drug front. She is smart and calm, with justice engraved in her bones. However, when investigating a serial drug case in Yunxi County, she was attracted by the contradictory temperament of the suspect Lin Yuan - he always appeared on the edge of the case, but seemed to keep a distance from the crime. The silent figure in the dust at the construction site and the deep gaze under the light of the interrogation room, this man with a secret in his right hand, was like a mist, causing her to go deeper step by step amid suspicion and exploration.
