TO and CHUEN discover on their way back from supermarket that YUK has moved into their neighborhood. TO is testing his new camera lens in the balcony. He sees YUK wiping off blood in his flat. A man has killed his wife. Everybody in the clinic talks about the murder when TO arrives at the clinic. He suspects YUK is the murderer. CHEUNG sees YUK moving a large bag on his way home. CHERRY stays at his place for the night so as to monitor YUK’s movement. The next day when she is about to leave, CHEUNG’s family members make her stay by a trick. CHEUNG tries his best to please her. He offers to keep an eye at YUK for her when she is tired. When she wakes up, she is surprised to find that he is in YUK’s flat.