Which South Korean horror film series is noted as helping to generate the explosion of the New Korean Wave cinematic movement containing movies like "Wishing Stairs"?
Wishing Stairs:  It is the third installment of the "Whispering Corridors" film series set in girls high schools, but, as with all films in the series, is unrelated to the others; apart from a song being sung in one scene that is a pivotal plot in "Voice".
i don't know