The mother of Chen Jingyi (Kathy Chow), Senior Inspector of Major Crimes Unit, was arrested 20 years ago.

abnormality

mental disorder

Rape and murder, static instrument found.

murderer

Probably around here.

Familiar person

. The murderer kept calling Jing Yi, leaving clues to hunt him down. Colleagues around him were killed one by one, and Jing Yi gradually fell into the dilemma of being chased by the counter. Finally, she was taken away by the murderer. When she woke up, she found herself in her hometown twenty years ago. The killer has been waiting for her here. . . .

I just watched it some time ago. .