YING Sir brings MA FU, KAM Sir and CHIU Sir to an old restaurant to eat grilled ham and chicken. They discover MA CHONG meeting with the gangster Brother KWAN because Brother KWAN is being sued for intimidating somebody. Brother KWAN scolds MA CHONG angrily in front of everybody and CHIU Sir goes to help MA CHONG. After returning home, MA FU is still upset that MA CHONG was trying to please Brother KWAN servilely. He reminds once again that MA CHONG was dismissed by the police force long time ago. Invited by YING Sir, MA FU accompanies CHAI-CHOI to buy tea. They become friends soon and help to capture a thief together. SHUI-CHING asks MA CHONG out. She suspects that her husband is committing adultery and she asks MA CHONG to help finding a private detective for investigation. After drinking, MA CHONG visits YIN-FUN and he reveals that SHUI-CHING’s husband is really committing adultery……