At the centre of it all is Shiki, a loner of a teenage girl with homicidal urges who wears only kimonos. I would love to alk more about Shiki because she is a fascinating character but that is more for Kara no Kyoukai 2.
In Kara no Kyoukai 1: Fuken Fuukei Shiki investigates a series of apparent suicides where teenage girls have been jumping of the same abandoned building, however, Shiki believes there is more to the suicides than meets the eye and something or someone sinister is making the girls jump.
Like I said before Kara no Kyoukai 1: Fukan Fuukei struggles to stand up on its own mainly because although the story is good it isn't great. What save it are the characters, beautiful and detailed animation and the haunting music.
Another problem with Kara Kyoukai is that the series is not in chronological order so if Kara no Kyoukai 1: Fukan Fuukei does not draw you into Shiki's world you are probably not watch the rest of the series. Which would be a shame because the best is yet to come.
