Li Hui-zhen, who is a public defense counsel at a court, takes over a murder case involving teenagers of Ah-cheng. But the existing evidence is unfavorable to defendant. Seeing that the courtroom procedures are merely formalities, it seems as if Ah-cheng will certainly be found guilty. With the grandmother frantically seeking leniency, Hui-zhen is moved and decides to seek help from former criminal policeman. However, with everyone's testimony, the material evidence, and the judge's opinion going against her, how can Hui-zhen deal with and reverse her weak position?