The Diary of a Big Man

The Diary of a Big Man

Year: 1988

Runtime: 86 mins

Language: Cantonese

Director: Chor Yuen

ComedyRomance

A duplicitous bigamist teams with his longtime friend Chi Hung, concocting endless schemes to hide his two wives. A meddling police officer and a chain of mishaps expose the ruse, leading the wives to discover the deception. Joined by Chi Hung’s frustrated fiancée, Ka Lai, they exact revenge on the two men.

Warning: spoilers below!

Haven’t seen The Diary of a Big Man yet? This summary contains major spoilers. Bookmark the page, watch the movie, and come back for the full breakdown. If you're ready, scroll on and relive the story!

The Diary of a Big Man (1988) – Full Plot Summary & Ending Explained

Read the complete plot breakdown of The Diary of a Big Man (1988), including all key story events, major twists, and the ending explained in detail. Discover what really happened—and what it all means.

The film opens with a playful narration by the lead, who introduces himself as Chow Ting-fat [Chow Yun-Fat], and quietly lays out a dream of wealth, success, and a life where beauty seems to orbit his every move. As the camera shifts to a rain-slick street, Chow’s ambitions collide with reality when his car breaks down, forcing him to take shelter from a heavy downpour. It’s here that he meets two striking women: Joey [Joey Wong Cho-Yin], a chic boutique owner, and Sally [Sally Yeh], an air-hostess who will eventually become his wife. The setup is breezy and comic, hinting at a double life that Chow plans to manage with clockwork precision: a timetable of meetings, seamless alibis, and carefully crafted excuses designed to keep both wives from discovering each other.

Chow convinces himself that his two-timing scheme is foolproof, and he begins to choreograph a calendar that would allow him to savor a comfortable, uninterrupted life with each wife. Yet the fragile balance is shaken when Sally decides to fly back to Hong Kong to stage a surprise birthday celebration for him, a gesture that clashes with Joey’s visit and shatters Chow’s carefully laid plans. In a scramble to salvage the ruse, Chow ropes in his loyal ally and best friend, Chi-hung [Waise Lee], for back-up. The two improvise a string of sign languages and coded excuses to keep the two women from ever comparing calendars or sharing notes.

Trouble compounds after a street accident involving Chow and Inspector Cheng [Kent Cheng Jak-Si], who ends up in the hospital. To avoid suspicion, Chow tries to slip away by shadowing Sally to her hospital bed, hoping she won’t notice the double life. Chi-hung then steps in, pretending to be Chow and answering the inspector’s questions with quick excuses, successfully convincing the investigator that he’s merely facing a copy of Chow in a bustling city. The inspector buys the ruse and leaves without a clue, even as the truth glitters just beneath the surface.

The tangled web grows more intricate as Joey and Sally accidentally become friends, first at Joey’s boutique and later at the hair salon. The situation escalates when Joey throws a birthday party for Chow, and Sally accompanies him to a different gathering at his home. Once again, Chi-hung is dragged into the fray. Chow, improvising again, shifts suspicion onto Chi-hung by presenting him as his best friend and Joey’s “husband.” The ruse buys a moment of calm, but the friends’ friendship has become a fault line ready to crack. To keep the act afloat, Chow stages a chaotic ruse in which Chi-hung’s face ends up smeared on a birthday cake bearing the phrase “Joey Love Fat,” and he even convinces Joey that the police inspector is a psychopath, just to buy more time. He also fakes a reveal that he and Chi-hung are a same-sex couple, forcing the inspector to back off—an audacious bluff that keeps the lovers in the dark for the moment.

Meanwhile, Chi-hung’s strain grows heavy enough to threaten his own relationship with Ka-lai [Carrie Ng Ka-Lai], who believes her boyfriend is having a secret affair. The tension reaches a boiling point when all the principal players—Chow, his two wives, Chi-hung, and Ka-lai—converge for a tense restaurant gathering. The women strike a surprising accord: Joey and Sally become friendly with Ka-lai, and Chow hatches a farcical plan that requires Joey to pretend to be Sally’s lover while Chi-hung pretends to be Ka-lai’s lover. The absurd arrangement buys time, but it’s a brittle peace that could crumble at any incompatible moment.

One year into the odd marriage, the two wives finally confront the truth when they bump into each other at a photo shop, spotting their wedding albums that prove Chow’s two-timing reality. Anger, hurt, and a calculated resolve push them toward action. They stage a vacation “for the men” that spirals into a trap: a hotel room set for a Valentine’s Day payoff, where Chow finds himself suddenly caught between the two women who are now fully aware of his deception. The dramatic setup dissolves into a comic-violent farce as Chow is discovered in a room with both wives, and their shared lesson begins—Chow is outmatched as he’s manipulated, tied up, slapped, and subjected to a series of humiliations that underscore the price of deceit.

After the chaotic lesson, Chow’s attempt to win his wives back unfolds against a sense of inevitability. He travels to reclaim what he has endangered, but the women stand firm in their own resolve, debating who deserves to be his one true partner in life—an uneasy question that remains unresolved as outside forces collide with their personal drama. A police raid targets two criminals, including Shing Fui-On, and the arrival of Chow and the wives inadvertently tips off the criminals, who end up taking the women hostage within a police siege. The wives’ fear gives way to courage as they defend themselves, and the criminals surrender in a display of chaotic escape that the surrounding officers manage to defuse.

In the film’s closing moments, a drenched Chow returns to the scene to offer a sincere apology. He tells his two wives that perhaps it is best for them to live without him, and he sends them home in a waiting taxi as rain continues to fall. The end leaves a hopeful sense that the women may choose their own paths forward, even as the man who caused the storm looks on with a tempered, if remorseful, calm.

Last Updated: October 09, 2025 at 14:18

Mobile App Preview

Coming soon on iOS and Android

The Plot Explained Mobile App

From blockbusters to hidden gems — dive into movie stories anytime, anywhere. Save your favorites, discover plots faster, and never miss a twist again.

Sign up to be the first to know when we launch. Your email stays private — always.

Unlock the Full Story of The Diary of a Big Man

Don't stop at just watching — explore The Diary of a Big Man in full detail. From the complete plot summary and scene-by-scene timeline to character breakdowns, thematic analysis, and a deep dive into the ending — every page helps you truly understand what The Diary of a Big Man is all about. Plus, discover what's next after the movie.

The Diary of a Big Man Timeline

Track the full timeline of The Diary of a Big Man with every major event arranged chronologically. Perfect for decoding non-linear storytelling, flashbacks, or parallel narratives with a clear scene-by-scene breakdown.

The Diary of a Big Man Timeline

Characters, Settings & Themes in The Diary of a Big Man

Discover the characters, locations, and core themes that shape The Diary of a Big Man. Get insights into symbolic elements, setting significance, and deeper narrative meaning — ideal for thematic analysis and movie breakdowns.

Characters, Settings & Themes in The Diary of a Big Man

More About The Diary of a Big Man

Visit What's After the Movie to explore more about The Diary of a Big Man: box office results, cast and crew info, production details, post-credit scenes, and external links — all in one place for movie fans and researchers.

More About The Diary of a Big Man

Similar Movies to The Diary of a Big Man

Discover movies like The Diary of a Big Man that share similar genres, themes, and storytelling elements. Whether you’re drawn to the atmosphere, character arcs, or plot structure, these curated recommendations will help you explore more films you’ll love.