'Wishing Stairs' (2003) - Yoon Jae-Yeon.

Old School K-Horror classic 'Wishing Stairs' remains a creepy Urban Legend shocker that is atmospherically stuffed to the rafters with a hair-raising plethora of Asian Terror tropes! While the oppressive Ballet school setting inevitably recalls 'Suspiria', the macabre, generously fright-packed Twinkle Twinkle Wishing Stairs is very much in a creepy class all of its very own. As an aside, I have noticed that a great number of Japanese/Korean haunted high school horrors feature profoundly unlikeable teachers, which is something I find personally relatable. 'Wishing Stairs' is quality horror, the fine performances, shuddersome set-pieces, and excellently tingly score make it eminently superior to much of the dingily recycled dross of today. Trapped inside a school of fulminating despair, some of the girl's hopes of alighting upon that mythic 29nth stair prove fatal. Be very, very careful what you wish for, since the genie lurking inside the bottle is never known to play fair!