An Ni, a prosecutor of the Jiangcheng Procuratorate, was assigned by Chief Prosecutor Xu Ailin to handle the case investigating a missing college student who jumped off into a lake. She started with Zhao Jikai, the General Manager of Huiquan Games, and found connection between him and overseas organizations that promote bullying, leading to the arrest of the crime perpetrators. While Huiquan Games’ stocks price plummeted, Yin Huiquan donates to Jiangxiao Academy which would in turn corrupt minors in the guise of charity.

The student Li Xiaowen and other victims come forward, publicly denouncing the unorthodox means of Jiangxiao Academy to control youngsters. An Ni presents solid evidences in the court, leading to the academy’s shut down and punishment of those who were involved.

Yan Qin, who took over the Huiquan Games, misappropriated the funds to invest in the development of a copper mine. However, this investment venture was a Ponzi scheme by an online financial fraud gang.

In twelve separate episodes, twelve different protagonists talk about their bizarre experiences in the same mysterious interview room.