Kung and Kin's rivalry goes way back to the seventies when they fought over the same girl, who eventually became Kung's wife. Now they run competing phone stores right across from each other on Mongkok's busiest street, and stretch their minds trying to outdo each other with crazy promotions.

Four young women are tempted by the money that can be earned in prostitution. They have to learn in their own way that nothing comes without a price.

Four men attempt to fool around as much as they can before their wives return from a 14-hour Buddhism trip to Thailand.