An assassin known as Wind Yip (Sharla Cheung) is thought to be a robot after she is seen ripping the guts out of the president of a large corporation and dodging a hail of bullets from police. Later, she shows up at the corporation to steal the Diamond of Emperor Chen which is the key to a vast treasure. But another group of thieves, led by Ko Kit (Anita Yuen), are also trying to steal the diamond for their boss who has labeled the operation the Crystal Fortune Run. After guards are alerted, Ko takes the jewel and leaves Wind to fend off the guards.

A Hong Kong mob boss is killed by a rival gang, leaving the business in the hands of his daughter, and when the gang commits more mayhem on her wedding day, she sets out for revenge.