A bizarre murder occurred in St. Martin Middle School. He Manjun, the son of the Minister of Military and Political Affairs, died strangely. Policeman Chen Hu received the task and secretly investigated the truth in the school. The seemingly peaceful campus has undercurrents surging… There are clear divisions of teachers and students, yet they can fight against external enemies together. It is suspected that He Manjun’s girlfriend has previously reported him for rape... The skilled masked man, the constant strife of the gangster bosses, the gentle female teacher and the pitiful campus beau, what is the inextricable relationship between them and the murder case? With Chen Hu's unraveling, the hidden secrets are finally revealed, but the case is now even more confusing. The murder turns out to be just the tip of the iceberg, the truth is something else…...