To celebrate going back to work, KIU-PAK specifically wears a new suit to report for duty, and his co-workers think he is going to be promoted after seeing him. CHI-SING tells KIU-PAK to investigate a drug case. KIU-PAK asks him about the promotion, without knowing that CHI-SING instantly flies into a rage. In order to get promoted, KIU-PAK knows very well that he has to convince THINNER to become a prosecution witness. With CHEUNG HAK and CHEUNG FEI’s quality of life continuing to deteriorate, their mother SHUK-HA comes to Hong Kong to visit them. CHEUNG FEI learns that SIU-HUNG will also come. However, as soon as CHEUNG HAK hears the name, he appears to be very frightened. Upon their arrival, SHUK-HA starts picking on them, especially about the place they live. CHEUNG HAK asks SIU-HUNG to leave, but SIU-HUNG insists on staying. On top of that, SHUK-HA even receives the rent from SIU-HUNG……