Lee Chak-Sing Stephen Chow is a rich kid living in Hawaii. He’s arrogant and enjoys pulling mean tricks on everyone around him, especially those who take life a little too seriously. His world tilts when he meets Chung-Chung Gigi Leung Wing-Kei, a shy and awkward young woman he initially declares to be very ugly. This blunt judgment sets off a chain of events that pulls him into a much larger, messier world than he ever imagined.
In a Pulp Fiction-inspired dance contest, Chung-Chung becomes the target of scorn when Fumito [Joe Cheng Cho], a local crime lord, is offended by Sing’s flirtation with his girlfriend. In a moment of rage, Fumito orders his henchman Mark to kill Sing. Sing’s confidant, Tat [Richard Ng Man-Tat], is revealed by Sing’s mother to be his biological father, a startling truth that forces Sing to confront what family really means: accept Tat as his father and forfeit his inheritance, or stubbornly cling to the idea of a life of luxury. Sing ultimately chooses Tat, a decision that sets the stage for a dramatic reversal of fortunes.
When Tat arrives to rescue his son, the two are captured by Mark and trapped in a bathroom stall, where Mark plants a bomb. In a desperate move, Sing amputates his own arm to allow his father to escape on an ejector toilet seat, and Sing appears to perish in the blast. Yet the story doesn’t end there: Sing’s brain and lips survive, and a new, high-stakes possibility emerges—there is a technology capable of rebuilding a body for a staggering $60,000,000. Sing renounces his wealth and cuts off the possibility of funding from Tat, who can only contribute a fraction. A glimmer of hope arrives when Chang Sze [Elvis Tsui Kam-Kong] offers to create a body for a mere $6,000. After a series of whimsical and painful trials—like fashioning legs out of arms— Sing is rebuilt as a cyborg.
To fool Fumito, a funeral is staged for Sing, with only Chung-Chung in attendance, unaware of Sing’s survival. Seeing her mourn him deeply stirs Sing’s remorse for how he treated her and others. Two years pass. Sing takes a job as a teacher at one of the worst schools in the area, where he is harassed and brutalized by the students. The situation escalates to a scene where Sing is “crucified” at the front gate, his low-cost garden hose genitalia on display for a cruel crowd. Chung-Chung is now grown up as well, richer and engaged to a handsome fiancé who drives a fancy sports car, a sharp contrast to the awkward girl Sing once mocked.
In a moment of despair, Sing attempts suicide, but Chang Sze delivers a breakthrough—the microchip that allows Sing to transform into a variety of household appliances, making him nearly indestructible. With his newfound powers, Sing returns to the school to restore order and discipline, turning the once chaotic place into a space of hard work and dedication. The students, who had seemed beyond hope, begin to show real progress under his unconventional guidance.
Sing’s unusual resurgence catches Fumito’s attention, and Mark is dispatched again to finish the job. The battle returns to a more personal level when Mark infiltrates Sing’s wedding party by disguising himself as Sing’s old friend Siu-Fu, a ruse that Sing quickly uncovers. In the ensuing confrontation, Sing appears to die again in an explosion, only to return in a bold and surprising form: a powerful old lady, evoking a playful mascot vibe, clad in a bulletproof robe. The final gambit sees Sing transform into a microwave oven and trap Mark inside, burning him to death. In the aftermath, Fumito is disposed of, and Sing’s journey from cruel playboy to protective mentor comes to a strangely triumphant close.
