By a strange twist of fate, dutiful Hong Kong policeman Dan saves the life of the leader of a violent gang of armed robbers. When they commit another crime, Dan is determined to put an end to their activities. He works with the leader, whom the gang had betrayed, to engineer a plan to wreak havoc within the gang and let the gangsters kill one another. But it becomes increasingly obvious to Dan and to his colleagues that Dan is suffering from a severe mental disorder, and Dan finds that instead of upholding the law as a righteous police officer, he has now become a fugitive wanted for murder.

Two different men each find their true meanings in life. Leslie and Tony, two lower middle-class bachelors, are bosom friends. Leslie is a wandering soul who seems unable to settle down. He give got fired and his girlfriend left him. Tony is a frustrating musician and a part-time worker at an elderly home. He doesn't like old people, but works there only to get close to his dream girl WAI.

Diana and Wai have become overburdened with debt, and in a scheme to make some quick cash, they put together a fake "family" to go on a reality TV show. Their family is pitted against another one, and they must compete to see who can live off the smallest amount of money. But as the game approaches the end, the show's producer forces the director to make a few changes to boost ratings, which may inadvertently expose Diana and Wai for the frauds they are.

The circus group performs at the Shanfa Circus when a huge load of bombs crash on the stage and the performers try to find a home to live and get money for food.

Fai, once a world champion in boxing, escapes to Macau from the loan sharks and unexpectedly encounters Qi, a young chap who is determined to win a boxing match. Fai becomes Qi's mentor and rediscovers his passion to fight not only in the ring but for his life and the cares.