SO takes a disc to SUM’s place to share with him some pornographic photos. SUM has copied the photos to his computer when he is trying to delete them. Not wanting LAI-SUM to find out about them, he throws away the computer right away. Unexpectedly, the cleaning worker takes it to the property management office. LAI-SUM, who happens to walk past the office, sees the computer as well as the photos. YEE is surprised YIK speaks fluent Sichuanese. He inquires into YIK’s background from his school and learns that YIK is not CHI’s son at all. YIK’s real mother, WAI CHING, is now in Mainland China. YEE asks SUM to look for CHING for him. LAI-SUM worries that SUM will take the opportunity to fool around. SIN teaches her to put away SUM’s home return permit, just as she has put away SO’s. What SIN does not know is, SO has applied for a replacement already. SO and SHEK make a fake home return permit for SUM so that he can cheat LAI-SUM……