Legend has it that hundreds of years ago, the world was plagued by a scourge – a giant snake with nine heads and a golden body. Often transforming into a woman as beautiful as a celestial fairy, Hydra wreaked havoc on the world and called herself Lady Golden Snake. People were terrified until Master Nan Hua appeared. He defeated the Hydra, beheaded her and trapped her immortal spirit in a divine sword. Hundreds of years later, a mysterious demon broke into the Demonslayer's Hall, where the sword with the Golden Snake's spirit was kept, and stole the sacred relic. The young demoness Qu Ling was tasked with retrieving the sword, but due to her weak spiritual power, she was unable to resist the Golden Serpent and decided to seek the help of Bian Xiaoya, a demon hunter. Together they embark on a journey to retrieve the divine sword and save the world from the Hydra's second coming.
Demon Chang Mian has been bound and enslaved in the Painting Workshop since she was a child. Now she is the best skin painting artist. The Demon King orders the capturing of General Shouyang's fiancée Qiu Sang. In the accident Chang Mian kills Qiu Sang and decides to take her place.
The soldier king Qin Yang's fiancée Ye Qin met with an unknown beast and died tragically. Gu Ping invites him to participate in Ye Qin's scientific research before her death. But Gu Ping is using Ye Qin's research results to combine the genes of unknown beasts to create the "Zero" dragon creature. The intelligent dragon creature, coupled with the extra-terrestrial beast evolved by devouring, an imminent city war is coming...
The film tells a story of 2 girls who were born on the same day and unintentionally switched at birth. Their lives are completed changed due to the misplacement when they are returned to their respective families.
24 years ago, "God of Sabre" Yang Changfeng was double-crossed and murdered by someone close to him.
Hong Kong, the present day. At the luxurious Yee Low Mental Sanatorium, psychiatrist Xiao Tingqin (Tang Yifei) is assigned the case of "special" patient Sum Liu-sheung (Cherrie Ying), who claims to live both in the real world and 12 parallel universes, and appears to have special powers. As soon as they meet, Sum starts playing mind-games with Xiao, whose one-year-old marriage to independently wealthy policeman Zhen Shanlin (Stephen Fung) is already under serious strain, due to her workaholia and her aversion to being touched by him. Sum introduces Xiao to the scientific concept of "worm-holes", through which one can travel in time and to parallel universes, and stirs memories in Xiao of her past relationship both with Zhen and her first love, Ji Lü. Zhen's friendship with gourmet-food shop-owner Gu Xilin has also put further strain on her marriage, and one day, meeting them in the street, she starts to wonder whether Sum has enabled her to experience parallel versions of her life.