幽默风趣的爱情喜剧，三个年青医生常开道（刘陆华）、史瑞科（刘尚谦）、萧而可（李修贤）被安排追求院长的三个女儿——唐玲珍（萧瑶）、唐玲珊（陈思佳）、唐玲玲（妞妞）。三人以「剪刀、石头、布」的猜拳方式来决定追求对象。各出奇谋，碰到一鼻子灰，鸳鸯错配，于是再重新分配，依然是乌龙百出。喜剧中的追女桥段层出不穷，用尽英雄救美、苦肉计、死缠烂打等爱情药方，却全部失灵。三人焦头烂额，重整旗鼓，与敌展开爱人争夺战。最后，他们都找到真正的爱情妙方，勇取芳心，就是……

During the construction of luxury apartment buildings a huge nest of thousands of snakes is discovered. Francis Chang (the boss) refuses to delay the construction and orders to kill all the animals. He is repeated warned by his wife, who had some nightmares concerning him and the snakes. They do not manage to kill all snakes and so they take revenge on the construction workers and Francis Chang. Soon thousands of killer snakes under the lead of a giant Boa invades the building an kill all the new inhabitants. Even a snake master can't stop them.