Wishing Stairs (2003)

여고괴담 3: 여우계단

aka Whispering Corridors 3 Wishing Stairs · Yeogo goedam 3: Yeowoo gyedan · 여고괴담 3: 세 번째 이야기 여우계단 · Whispering Corridors 3: Wishing Stairs · Whispering Corridors 3

A staircase leading to a schoolgirls' dormitory usually has 28 steps, but sometimes a 29th step appears. Any wish you make while standing on this step comes true, even if it must come true in the most horrific way possible.