Ah Long Pte Ltd 《老师嫁老大》is a light-hearted black comedy about the triad world and the money-lending business, the movie takes on a humorous and sarcastic treatment. It depicts how a young lady tries to restructure her money-lending triad into a professional and ‘loving' triad that stands against the use of violence after she takes over from her triad leader who has retired. Her various restructuring plans (which are no doubt very creative) bring about hilarious results.

Chen Jun (Richard Low) is the leader of Shao He Triad. The story opens with him deciding to “retire” from the triad business. Prior to his retirement, he elects Wang Li Hua (played by Fann Wong), a young but tough girl, as his successor.
Li Hua believes that changes need to be made to the current money lending system . Although Li Hua prioritizes the triad's success, she is very much against the idea of using violent means to collect debts.

However, Li Hua's plan of “restructuring” her triad meets with obstacles and opposition from the majority of the conservative elders in both her own triad and rival triad. At the brighter world, Mr. Fang(Mark Lee) a kind-hearted dance instructor who is slightly sissy in character. Fate has it that Mr. Fang runs into Li Hua on numerous occasions by chance. Since Li Hua's mother has been pressuring her to get married, Li Hua decides to force Mr. Fang to marry her. Surprisingly, Mr. Fang agrees to it, wanting to prove his masculinity. Though finding it hard to accept the fact that Li Hua is a triad head, Mr. Fang approves of her effort to minimize the use of violence. Subsequently, he offers to help Li Hua out by introducing creative ways to reduce violent methods of debt collection.

This movie is created by Film Director Jack Neo ( 梁智强 ), founder of J Team Productions, is truly a local entertainment legend. He is a great man with humble origins. He believes everyone has his own road to success and he upholds his beliefs throughout his 30 years of relentless contribution towards the local entertainment industry .