Crime Psychology: Who Is the Killer?

In Lincheng in 2025, a string of bizarre murders hangs over the city like a dark cloud, leaving its citizens gripped by fear. Lin Yuxin, an elite police detective skilled in criminal psychology, crime-scene investigation, and computer hacking, is called in at this critical moment and vows to uncover the truth behind the cases. As her investigation deepens, she discovers that each crime is accompanied by a mysterious death notice, and that the killer seems to possess extraordinary means, able to take lives despite the tightest security. Even more shocking, every clue points to a massacre from twenty years ago. Li Tianyu, who should have vanished from public view, has returned as an avenger. Lin Yuxin is pursuing the truth, while Li Tianyu is consumed by hatred. As they pit their wits and courage against each other, they gradually uncover a buried past and become entangled in a maelstrom of love and hate, justice and revenge.