Sit Muk-fu
Sit Muk-fu covets the beauty of the maidservant Ku Kar-lin. Ku concocts a scheme with her husband Wong Hoi to swindle money out of the lascivious man and has to flee into hiding with Sit being stabbed to death during their secret liaison. Detector Lui Hak investigates into the murder at Ku's house and arrests the husband who has a sharp knife in his possession. Bearing witness to the murder, their daughter Bo-bo fights to prove her father's innocence. Upon receiving a score of mysterious phone calls revealing Ku's whereabouts, Lui lures the woman out with Bo-bo as bait, subduing and detaining the suspect. The detective fathoms the mystery of the murder case which leads him to another suspect, But Kei. But has been extorting money from Sit and forces his daughter, the sole heir to his inheritance, into marriage in return for concealing his murder-for-money scheme. But submits to arrest without resistance while Ku and husband walk free, acquitted of the charges.
Ma Si-tsang is memorable in his comedic roles for being lively and down to earth, making a stark contrast with the tough and feisty Hung Sin Nui, and they strike gold as a team in screwball comedies. Ma is psychologist Doctor Tsui while Hung is Pearl, the feisty third daughter who is hard to get along with. The undaunted Tsui sees the virtues in Pearl and teases her to teach lessons on marital harmony. With multiple schemes, Tsui teases, coaxes and has Pearl taste her own medicine. The battle of wits and the sexes becomes a joy to watch with Ma's complacent and roguish portrayal as a refined witty scholar clashing with the energetic and bickering Hung.
Yu Yat-chi
Hotelier Pak Kam-lung meets Cheung Yuk-neong on a ship travelling to Hong Kong. In Hong kong, Kam-lung searches for Yuk-neong's whereabouts and throws a costume party to lure Yuk-neong. He finally meets Yuk-neong again but she is cool towards Kam-lung. In order to get close to Yuk-neong, Kam-lung disguises himself as a hotel attendant. Meanwhile, the gentleman-thief Yu Yat-chi is attracted by Yuk-neong's diamond brooch. Yat-chi poses as a banker to get close to Yuk-neong. He lures Yuk-neung to his hideout by falsely claiming that her father is hurt in hospital. Yuk-neung is kept prisoner in an attempt to force her father to hand over the diamond brooch. Kam-lung puts on a female disguise to penetrate the hideout to save Yuk-neong. His disguise is seen through by Yat-chi, but fortunately, the police is alerted in time. The bandits are arrested. Finally, Kam-lung and Yuk-neong are married.
