Zhang Yao, whose family was destroyed by drug dealers, secretly cooperates with Anti-drug team leader An Du. The two join forces to ruthlessly eliminate the evil and vow to wipe out Mukun and Anpei, the top two figures of the criminal group.

单身白领方卉独居在家时，常常觉得不安，似乎有一双看不见的眼睛在窥视她的日常，伴随着身边种种让人不适的遭遇，恐怖的真相逐渐逼近……