Detective
Cheung framed Chan For. Chan orders his wife not to tell this to their children, Ah Lan and Hung. His wife passes away. On her deathbed, she asked a neighbour, To Chung-man, to take care of her children. Claiming to be a good friend of their father, Chan For moves in to the bed next to Ah Lan to take care of his children. Hung likes this uncle because he always treats him generously. But Ah Lan finds "Uncle For" weird and enthusiastic. Ah Lan is forced to pay her mother's debt. Hung is suffering from acute appendicitis. To solve Ah Lan's financial problem, Chung-man returns to his rich family and accept an arranged marriage. Ah Lan decides to sell herself to the construction site foreman for one night. Chan For wants to stop his daughter from making this deal, so he agrees to work for Cheung again. The next day he carries out a robbery and is caught. Ah Lan and Chung-man visit him in jail, and hold their wedding ceremony in front of him. He looks forward to the days when he returns.
Thug
The Flying Dragon gang goes on a rampage and the police Inspector is at his wits' end. He then commissions Wong Ngung, Wu Ngar and Heung Nga to help him catch the gang members. Suet-ying, a young woman, is addicted to gambling and owes a huge sum to the gambling den that belongs to the Flying Dragon gang. She has even signed IOUs. When the younger sister of Ying's husband sees that Ying is weighed down by worries, she asks Wu Ngar for help. Wu Ngar sneaks into the gambling den, but her behaviour is suspected by the gang leaders, Tai-kit and Tai-hong. Fortunately, Wong Ngung saves her. To get back the IOUs, Ying falls under the control of Hong and Kit. Master Lung has evil designs on Ying. He first kills Kit and seizes Ying. Hong then shoots and kills Lung. Wong Ngung and her two partners get back the IOUs for Ying. They notify the police Inspector to arrest the members of the Flying Dragon gang. Hong is shot and injured by Wong Ngung. He is arrested with the other gang members.
Lee (Ng Cho-fan), who is the retired jewel thief the Black Cat Burglar, is suspected by the police in a string of burglaries. While fleeing from the police's search, he realises he can only prove his innocence by catching the new Cat in the act. Meanwhile, he is romantically caught in between a young girl from overseas and his goddaughter. As a Cantonese ripoff of Hitchcock's To Catch a Thief (1955), this remake does not have the beautiful scenery from the French Riviera but is full of economical wonders. Director Wong Hang employs westernised filmmaking troops to enhance the film, making it outstanding from other Cantonese films of the same time. From high society gatherings to a hide-and-seek in a masquerade, the film demonstrates not only an elegant style but the versatility and adaptability of Cantonese films. Unlike Cary Grant, Ng Cho-fan manifests himself with a mysterious and artistic aura.
