WAI sends KWAN to set up a special unit to investigate the case in Tuen Mun. For LAN's sake, WAI does not sen LAN to the group but LAN insists on joining the investigation work. At last WAI agrees. LAN thinks that the sex maniac is a dweller in Tuen Mun, so she moves to live there with her colleague LING. LAN rents a unit from TIN MAN CHUN who runs a shop selling sweet soup. LAN also laughs at him being a coward in front of his wife. LAN meets her farmer schoolmate LIP CHING WA who is a doctor in Tuen Mun. When WA knows that she is still unmarried, he wants to win over her heart. CHUN becomes the chairman o+ the management committee of the building. When the committee is having a meeting in his shop, there is a girl being entangled outside his shop. He rushes to save the girl. CHUN suggests the organize a team to fight against the sex maniac.