The Prodigy Who Caught the Thief (1958)'s success prompted director Chan Man to make another film with the same cast, with Michael Lai again taking up the leadas a smart kid. In this film, Lai is the brother of Patrick Tse Yin, whose wife is a chauffeur played by Nam Hung. The titled Genius Boy witnesses the kidnap of a rich man's son, recognising that the kidnapper is a friend of the wealthy family.But no one believes him. After a series of misadventures, both the kid and his brother are detained by the kidnapper. Lai, now a teenager sharing the bill with adult superstars, turns in a nuanced performance, bringing to life a righteous, brave yet rebellious youth.

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