Sergeant Tong is wracked with guilt after he unwittingly kills a young girl whilst capuring a criminal named Cheung. When the girl’s sister is later kidnapped in a ploy to get Cheung released, Sergeant Tong vows to find and rescue her before she comes to harm.
The film is a spinoff of the original story and the two protagonists Wind and Cloud. The residents of Sword-Worshipping Manor, which houses the best sword-smiths in the world, are brutally massacred after they are alleged to be plotting a rebellion against the government. The young master of the manor, Ngou Kuet, is the only survivor. Ngou Kuet vows to finish forging the “Kuet” Sword, a task passed down by generations of his family which has yet to be completed. Ngou Kuet attacks Tin Ha Wui and battles with Wind and Cloud to obtain the blood of the Fire Kirin which can unleash the power of the sword. As the blood of the Fire Kirin runs in Wind’s veins, he becomes Ngou Kuet’s primary target.
An evil Duke attempts to kill and collect the blood of a royal family of European vampires in order to become all powerful. The only surviving member of the family travels to Hong Kong, only to complicate his struggle by falling in love with a mortal girl who just happens to have a vampire hunter for a brother.
By a strange twist of fate, dutiful Hong Kong policeman Dan saves the life of the leader of a violent gang of armed robbers. When they commit another crime, Dan is determined to put an end to their activities. He works with the leader, whom the gang had betrayed, to engineer a plan to wreak havoc within the gang and let the gangsters kill one another. But it becomes increasingly obvious to Dan and to his colleagues that Dan is suffering from a severe mental disorder, and Dan finds that instead of upholding the law as a righteous police officer, he has now become a fugitive wanted for murder.