Ghost in the Well

Ghost in the Well is a 1957 Japanese horror short film. A ghost story, it's based on an old folk tale. This one is more romance/drama and less horror. I liked it, and it's just 45 minutes long. I think it'd be suitable as an introduction to this sub-genre even for younger people for whom the gore in more modern films might be inappropriate.

Weird Wild Realm says "[leading lady] Hibari never fails to provide more than ample entertainment; it's really a very pleasant small film."