Wishing Stairs (2003) or Yeogo goedam 3: Yeowoo gyedan, is a very decent chiller from South Korea. The story of girls at a boarding school where there is a stairway that grants your wishes. Naturally the wishes are more of the Monkey's Paw variety than the Fairy Godmother kind.
What I liked : there was definately a creepy feel to the movie and the idea that if you believe with all your heart in the stairs a 29th step will appear to grant your wish is clever. Ji-hyo Song and Han-byeol Park are both good in there rolls as friend and competitors. I love this about asain horror, tragic endings.
What I didn't like: The movie stretched to only 97mins but felt a bit longer. The frumpy girl character was strange.