Hong Kong taxi drivers often encounter ghosts when soliciting passengers at night. For example, night driver Lam Chung-fat (Louis Koo) almost took a female ghost (Law Lan) to Tsuen Wan, while his colleague "Express Driver" (Lui Yu-yeung) encountered a female ghost pretending to be a ghost to defraud, and then took a real female ghost to Wo Hop Shek Crematorium. After work, gambling addict Lam Chung-fat was chased by debtors. In order to avoid gambling debts, he had to move into a cheap house on Yin Yang Road with his wife (Li Huimin) and son Anzi, but found that the house was haunted, which scared Anzi to cry every night. Lam Chung-fat swore to the ghost in the house (played by Ng Yi-keung) that if he helped him to make money, he would share everything he had in half. The next day, Lam Chung-fat found a set of mysterious numbers in the house. From then on, he was invincible and won every bet; but what Lam Chung-fat didn't expect was that the ghost in the house wanted to share not only his wealth, but also his wife and son... This film is the fifth work in the "Yin Yang Road" series.