YAT-YIN is reassigned to an idle position, and he comes across LEUNG SUM while looking for a lost dog named ROSE. LEUNG SUM mentions her background, so YAT-YIN suggests that she could post a notice in a newspaper to look for her family. LEUNG SUM's mentor, MEI-LAN, used to look after a girl called SOPHIE, who got married in Britain and recently follows her husband CHARLTON to return to Hong Kong because of her husband's job relocation. SOPHIE also pays LEUNG SUM $5 a day to cook for them. After leaving the newspaper office, LEUNG SUM and YAT-YIN bump into a mentally ill woman, MADAM LEUNG, during which YAT-YIN even helps her locate the whereabouts of her husband SZETO CHI-LEUNG. Therefore, they get to know the boss of a trading company, NG SAI-CHEONG. KAM WAH owes $500 in gambling debt, so he comes up with an idea……