Leon Lai and Lau Ching-wan play rival Triad gang leaders, always trying to outdo each other with bloodshed and violence and then settling down for a glass of wine after a hard day's killing.
Both men end up being betrayed by their bosses, Leon hides out in Thailand while Lau Ching-wan is paralysed from the waist down and is nursed back to health by his girlfriend Fiona Leung (and who has to do anything to earn the money needed). Lau Ching-wan makes it back to HK to face his boss and take vengeance but requires the help of Leon to finish the job...
It is nonsense of course, endless bloodshed and ridiculous gun play where the bad guys get killed with one bullet but the good guys can survive several hundred. It's not a subtle film but I've always enjoyed it. It was the first HK film i actually saw in a cinema in HK on release and i've always had a soft spot for it.