Whispering Corridors 3: Wishing Stairs (Yeogo goedam 3: Yeowoo gyedan)

At a Korean boarding school, legend tells of a ladder of twenty-eight steps: if the twenty-ninth step appears, the fox will grant the climber a wish. Kim So-hee, a ballet student who falls in love with her girlfriend, Yoon Jin-sung, becomes the center of competition when only one ticket to a top ballet school in Russia is available. Jin-sung's jealousy triggers him to find the magic stairs and claim victory over So-hee—not knowing that the price will be his lover's life. Meanwhile, Eon Hae-ju, a fat, abused schoolgirl, misses So-hee and uses the same ladder to bring her back to life, with dire consequences. What happens when a forbidden wish is fulfilled?