Young lawyer Zhou Mu accompanied his master to attend the case of death row inmate Chen Feng, but was mistakenly identified by the media as a defense lawyer. He took over the case live broadcast on the Internet. During the trial, Chen Feng was found guilty due to solid evidence. Seeing that the verdict was about to be announced, Xu Ying, a mathematics teacher in the auditorium, suddenly stood up and surrendered, claiming that she was the real murderer.