The story revolves around three brothers from a middle-income background in contemporary Singapore. These are characters who are representative of the business owners, white and blue collar workers of Singaporeans.
The film follows two thirty-something eccentric brothers (Akinobu and Tetsunobu), who are also each other's best friends. Their mundane lives change when sisters Naomi and Yumi accept their invitations to a party and the brothers have to decide if they are ready to exchange their happy existence for the vicissitudes of love.
A-Tai Alan Ko narrates that he is the son of Uncle Da (Chen Po-cheng) and Aunt Da (Samantha Ko), who run a troupe in Taichung. Uncle Da's troupe does traditional performance in front of religious processions. The religion requires performers to "initiate the faces and pose as gods"—to put on a special face painting, or to put on a heavy body puppet costume, both of these represent gods' persona. The performance demands training of martial arts, acrobatics and endurance, and the society associates performers with gangsters. Uncle Da has been competing with Wu-cheng (Liao Jun), who studied with Uncle Da under the same master. A-Tai grew estranged with his father and the troupe, and went to Taipei to study Rock music, until a mysterious old man in a blue coat bids him home.
Chi Mo Sai (Yuen Wah) meets Wong (Roger Kwok) in Auntie Fei's (Yuen Qiu) cafe and learns that Wong has a photographic memory. He decides to exploit this by teaching him how to play Mahjong, but Fei, Wong's boss, strongly objects. Despite Fei's objections, Wong learns Mahjong from compulsive gambler Chi Mo Sai. He impresses triad boss Tin Kau Ko (Wong Jing), but falls in love with Tin's mistress (Theresa Fu) and is beaten by his men. Wong goes crazy. Luckily, Fei cures him using Mahjong. Fei wants Wong to beat Tin in the climatic "King of Mahjong" competition.
A master Mahjong player named Fanny (Cherrie Ying) gets divorced by her husband and must play in the King of Mahjong match to win him back. As she plays, she must rely on her kung fu skills to beat up the famous cheaters such as the Japanese woman, a very strong man, the triplets and much more and win allied with her classmates, master, and brother(called ugly) along with her "Nipple Twister". The film ends with Fanny nippletwisting her ex-husband by meaning she now had the power her ex-husband used to have.
Qin Fen (Ge) returns to China in his late forties after many years overseas. He did not earn any type of degree while he was overseas. However, he is good with convincing others. He becomes a multimillionaire after selling an "innovative invention" to a high-profile (but foolish) angel investor (Fan). With his new fortune, Qin decides to put an end to his bachelor life and advertises online for potential partners to apply "if you are the one", that is, only if they are sincere.