FAN and his colleagues check BIU`s brothel. PIK is kidnapped by a loan shark and threatens KWAN to pay the debt. TIT saves PIK and promises to pay the debt for KWAN. KI suspects that he has AIDS. However he dares not tell his wife YIN. However YIN knows his problem at last.

YIN is depressed so she goes playing mahjong in Po Kee Store. She even goes to gamble in Macau with SUM. She loses a lot and has to shoulder a large debt. SUM leads her to borrow money from BIU. As she cannot pay the debt, YIN has to be a part-time prostitute.