Ching Long is charged for he has murdered Shiu Tai and he is put in detention centre. Ching Long is choking with rage because of the false accusation, Man Yi consoles him. Man Yi asks her former classmate, Maggie, to work as Ching Long's defense attorney. When they try to find out the way to prove Ching Long's innocence, Ching Long remembers that he has left his lighter in Tin Chun's car. Ka Kui finds the witness of Tin Chun’s murder act and he brings him back to the police station at once. Later on, he knows that the man is indeed a maniac. Thus, he is scolded by his superintendent severely. After the long separation, Hiu Ching and Ka Kui have mixed feelings in their minds. When they are chatting, Hiu Ching recognizes that Ka Kui has misjudged that she is a married woman. Up to this moment, she understands Ka Kui's state of mind. The trial of Shiu Tai's case starts, all the evidence is unfavourable to Ching Long……