Tommy Leung Ga-shu

Mr. and Mrs. Luo are addicted to gambling, but their luck is not good and always lose money. They see their gambling friend 'Snake boy' suddenly becomes rich, and they find out that the luck of "Snake boy" is depended on the ghost, however, his life time will be reduced. (imdb)

Hung is a street-wise smart aleck and Mak is his dumb sidekick. They are partners, mostly in unlawful jobs. One night, the two are spotted by Zaza in the middle of a heist. Consequently, they go to jail. Hung hates Zaza for this. In prison they are befriended by old timer Hui. The three run afoul of boss Orca and try to avoid Orca by insulting chief warden Ko. They are brought before correction officer who is none other than Zaza. Hung hates Zaza more. (hkcinemagic.com)