Lee Ho Yin is a young musician turned advertising executive who is shy and tongue-tied when it comes to women. One day, Lee meets lovely Yiu Kit Ying on a bus. Lee's light-hearted attitude to live leads to a serious of humorous incidents.

There's nothing like a good, opulent, gaudy musical to lift the spirits, but when it's a 1960's Hong Kong musical orchestrated by a Japanese director and composer, it breaks through the ranks as a classic of campy kitsch. A follow-up to the previous year's megahit Hong Kong Nocturne, with the same Japanese creative team, Hong Kong Rhapsody follows the fortunes of an unemployed magician whose love life is so knotty it would take Houdini to unravel!

A mad scientist wants to get his hands on a certain growth-accelerating serum developed by Hong Kong scientist Dr. Li Zong-Hua so that he can create an army of supermen and conquer the world.

Chen Hou is a chauffeur who gets caught in a mistaken identity scandal linking him to businesswoman Lok Dai. Chen was supposed to audition for a job as her chauffeur, but a proposed musical show is far more attractive to the aspiring dancer. When a rumor gets out that the two are involved in an affair, she's angry and confronts him, but his charms overwhelm her, and it's revealed that she too desires to dance. Soon she's bankrolling the affair, the sets are being built, and the singing and dancing begin!