Happy ghost iii (1986)

A young, unsuccessful singer, after committing suicide, is to be reincarnated, this time into a musical family. Her spirit must get to the hospital where her future mother is currently ready to give birth to her, so that she can enter the womb and be born. Unfortunately, she misses her appointed birth time, twice, due to the accidental intervention of a young man, Mr. Hong. At first she is angry and makes life hard for him, but eventually they fall in love, although she can't stay around long as she has one last chance to be born.