Whispering Corridors 3: Wishing Stairs

Also known as "Yeogo goedam 3: Yeowoo gyedan", this horror drama starring Ji-hyo Song, Han-byeol Park and An Jo tells the tale of three young girls who attend a fancy art school with a mythical flight of stairs. Supposedly, a certain spirit will grant your wish if the 29th step appears. However, your intentions must be pure, or the ramifications will be very harsh indeed.