Says Wiki:
Kaidan (怪談) (sometimes transliterated kwaidan) is a Japanese word consisting of two kanji: 怪 (kai) meaning “strange, mysterious, rare or bewitching apparition" and 談 (dan) meaning “talk” or “recited narrative.”
In other words "Ghost Stories", which is what we have here; a collection of 4 short films based on stories by Lafcadio Hearn.
