Yumiko Cheng is a Hong Kong Cantopop singer and actress. Cheng was given the Japanese nickname "Yumiko" by her friends in secondary school, and upon signing with EEG, adopted it as her official stage name.
During the Ming Dynasty, Tso Siu Yan, a power-crazed eunuch who rules his desert region of China as if he were the Emperor, ruthlessly thwarts plots against him and sets a trap for one of his enemies at the Dragon Gate Inn.
One rainy night in an arms factory near Shanghai, a young female worker accused of stealing a box of bullets from the ruthless Boss Ding is violently killed in a game of Russian roulette. Half a month later, a series of inexplicable deaths takes place in the factory, where the victims are shot but no bullets are found. Rumors of a deadly curse begin to spread in the factory, terrorizing the workers there. So, eccentric police inspector Song Donglu and his hot-blooded, gunslinging partner Guo Zhui are sent in to investigate the mystery of the phantom bullets...
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.