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.

Sky is the king of the underground car racing circuit. After winning a hard-fought race, Sky is set up by his archrival Tang Fung.

A young man goes to Las Vegas with his best friend to prove he can win big bucks. When he loses all of the money, he and his friend get help from a young woman who tells the man the story of some special stones that are part of a legend involving time travel and parallel universes. When the trio get in a car accident, the young gambler is the only survivor. Pursued by a female detective, the two accidentally end up back in time on Christmas Day, where the gambler decides to make the wrong things right, and he also ends up falling in love with the detective.

Three conmen are assigned to help the Chinese government capture a legendary swindler in Las Vegas and they will not be arrested in return for their aid.