The film tells the story of a teenager who experienced a cruel youth and was willing to sacrifice his life for revenge for love. Su Ang (Ou Hao), a teenager who grew up in a welfare school, and the girl Lin Qiao (Guo Shutong) depended on each other for life and warmed each other, but they were bullied and humiliated. When the boy grew up savagely and transformed into a computer genius, the bad guys did not get older, so Su Ang began to weave his own revenge plan. A skeleton was found that caused a sensation in the town. The captain of the criminal investigation team, Zhang Jianyu (Zhang Yi), took over the case and launched an investigation. In the difficult progress of the case, people of different identities were also involved in the case: a confused alcoholic, a butcher who wanted to make a fortune, Shen Ge (Zhou Yiwei), a suave musician Li Zhimin (Guo Xiaodong), a sexy brain doctor Han Yun (Yu Nan)... When the mystery surfaced, who is the real sinner?