Shadow Girl,(1971)

Usually Hong Kong is best known for their martial arts films and stars ranging from Bruce Lee to Jackie Chan. This 1971 film by Shaw Brothers is very unusual in the sense that the title character (played by Lily Li) is basically invisible during the day and visible at night. The effects could be comparable to vintage Universal invisible films of the 40s. However,this is a movie that hasn't seen the light of day on video yet. I've added some video captures of the film-btw