The four ladies live in different apartments at Chuen Mei Mansion respectively. The pipes at the Mansion are blocked. A plumper comes to carry out some repair work. The plumber, who is both handsome and muscular, helps the four ladies solve many household problems, making them admire him very much. This plumber dies without an apparent cause later. BUD is puzzled to find the four ladies’ jewelry in his pockets. BUD believes that the reason why the plumber was able to steal from the four ladies was that they are all very much attracted to him, to which the four deny. They are speechless when BUD reveals their secrets. BUD doesn’t want to embarrass them in fact. It is only because he has noticed that the person who killed the plumber also lives in Chuen Mei Mansion.