After TAK-KEI and MAK SEI discover that SILLY CHIU wants to go to an exotic club, TAK-KEI refuses to tail after him anymore but MAK SEI forces him to continue. Suddenly, someone wreaks havoc in the second-hand shop, making Mrs SHUM feel very frightened; whereas OI-KIU also learns that her father SHUM WING once again owes a lot of money. TAK-KEI and MAK SEI follow OI-KIU, thinking she is linked to the injury on duty case. They end up being taken back to the police station for questioning. TAK-KEI claims that he is a private investigator but the police do not believe him; whereas MAK SEI wants to meet someone called CHICKEN WAH. In a washroom, MAK SEI bumps into KWOK-WAH who instantly runs away to the rooftop terrace. OI-KIU tails after her mother only to find out that she goes to meet up with SHUM WING. On the other hand, SILLY CHIU asks SHUM WING whether he owes someone a lot of money, adding that he can help him solve the problem.… ...