Sypnosis:

A middle school girl named Huijun falls to her death after being bullied, leading to a series of mysterious deaths among the bullies, and violence towards Huijun’s best friend at school, a speech-impaired girl named Xiaotong. Everyone around her turned a blind eye, and a collective silence brewed greater violence. As the investigation progresses, old secrets of concealment and corruption are about to be revealed. New masterpiece of crime mystery from the director of Sheep Without a Shepherd!