Summary: Lin Wanxing, the ace of the Criminal Investigation Team, fell into the sea and lost his memory while hunting down the "painter" serial killer three years ago. The key memory fragments were lost forever. After being transferred to the Archives Department, she relied on her instinctive sensitivity to cases and discovered traces of artificial cover-ups in many unsolved cases. Lu Chenzhou, a professor of criminal psychology, had an intersection with her because of an old case. The two went from testing each other to being forced to cooperate, and encountered death threats several times during the investigation. When the evidence pointed to the top brass of the police station, Lin Wanxing's memory gradually recovered, but he discovered that he might be an accomplice in the case that year. The real murderer surfaced and kidnapped Lu Chenzhou to force her to destroy evidence. Lin Wanxing had to make the final choice between protecting justice and protecting her lover.
