A half man, half demon is guarded by a drunken Shaolin magician named Chan. One day, Chan sneaks out to go on a drinking splurge, and the man/demon escapes. Chan and his friend Ah Yuen work to capture the evil magician and return him back to Shaolin before it's too late.

Once there are two detectives in the police force, Fatty and Lanky, they have been very, very good friends, that until the day Gigi comes to their department for work. Fatty and Lanky immediately go after her skirt. Fatty and Lanky must find Boss Sin. They try to get information from Sin's man Fairyman who considers himself the biggest lover in town.