Plot: SIU tells CHING in details about the scenario in which she met SING on that day of his missing; she also takes CHING to the place where she met SING two years ago. At that time, CHING suddenly recalls that SING saw him being reprimanded by his superior, YEUNG KWONG; SING might have mistaken that CHING would get dismissed from the job because of SING’s playful behavior to ask his father to play ‘police-and-thief’