Ching-Ying Lam has a movie that begins with a ghost entering his body and meeting his wife.

It's a ghost tour group It's the work of Uncle Jiu in his early years. Uncle Jiu plays Ma Jiuying. The story tells that Uncle Jiu's cousin (with special functions) came to Hong Kong to find Uncle Jiu. On the way, she met a ghost and the car went down the hill. Everyone in the car died, but she didn't. At the end of the story, Uncle Jiu treated the ghost king with the Virgin Mantra, but the Virgin Mantra disappeared. Finally, she killed the ghost king with gasoline in the workshop. I don't know if this is the title you are looking for.