The serial killer had been lying low ever since Captain Yan brought Su Jianan and her colleagues to this small town. The results of the previous autopsies had been unsatisfactory with lots of missing information. When Su Jianan arrived much later, the circumstances no longer allowed for further autopsies to be conducted despite Su Jianan's demands.

Now that the killer had struck again today, Su Jianan thought it was the best opportunity for her to uncover important evidence. ...