SANG teaches CHI how to act in a promotional video clip. However, CHI makes mistakes all the time. FUNG, TING and FA analyze all evidence and laboratory results and are sure that NAM is just a scapegoat. FUNG interrogates NAM and hopes he tell the truth, but fails. SA’s harmonica skill improves a lot with HO’s help. She is elected to join the school team. FUNG has a new breakthrough in TSUN’s case. He finds a bloody footprint which proves that HEI was at the crime scene. HO knows NAM from tutoring his son before. He persuades NAM to tell the truth and ease off his family’s worry. NAM admits to the police that YIP has paid him to take up the charges. HEI wants to leave Hong Kong for good. He meets CHI before he leaves. She convinces him to report to the police and admits to his charges.