Yeogo goedam 3 (Wishing Stairs) is a sequel in name only. Other than the setting of the film (an all-girl's school in Korea), it has very little to do with the other films in the series. In this one, there is a staircase on the school grounds that the students believe is magical. The staircase has 28 steps. When you reach the top, if a 29th step appears, it will grant your wish. When one of the girls is killed in a fall, another of the girls uses the magical staircase to wish her friend back to life. But she gets more than she bargained for.
As with the other films in the series, Wishing Stairs is very well made. The directors of this film are able to get some very nice performances out of the mostly unknown and unexperienced cast. Technically the film is very sound with some nice cinematography as the highlight. The special effects are well done and help create some very creepy moments. Overall, it's a nice installment to the series.
But, I haven't rated Wishing Stairs as high as I did the previous two films. Why? It's a little too formalistic and unoriginal. One of the elements that made Wishing Corridors and Memento Mori memorable is the subtle use of horror. In contrast, the horror is more obvious in Wishing Stairs. At times it seems like one set piece after the next with nothing of substance pushing the plot along. As for unoriginal, if you've seen Ringu, you've seen one of the big moments in this movie. Wishing Stairs has a very pale girl with long black hair crawling in jerky motions through a window. Sound familiar?