Kario (Pulse) is unlike any Japanese horror I have seen. As much as I love the Ju-On series, the scares come from creepy ghosts that pop-up from unseen places. They are good movies, but those scares wear off after awhile. However, in Kairo the ghosts don't pop up suddenly and they aren't accompanied by loud music. They are just there and boy are they creepy. Sometimes they do nothing, they just stand there, staring. It creates a feeling of unease and constantly keeps the viewer on edge.
It's not just the ghosts that are unique, the story is incredibly interesting and intelligent. But it is not linear, logical and it doesn't explain everything (it doesn't have to, though). It really leaves it up to us what to decide. This is what is so good about this movie, it's much unlike most horror films. Forget all the recent American horror films, although some are excellent they really aren't like this. This film is almost like a dream in some ways. It goes at a very slow pace (clocking in just under 2 hours) and there aren't a lot of scares. At times the story may seem illogical but I beg to differ.
Kairo is really an apocalyptic horror much like the 2002 British horror film 28 Days Later (just replace zombies with ghosts). Also like 28 Days Later, this film carries a very profound social message but unlike 28 Days Later this one is about loneliness and how people become distant through the use of technology. There's also a heavy emphasis on the evils of suicide.
Kiyoshi Kurosawa has created an intelligent, unique horror film that doesn't quite get the attention it deserves. If your willing to experience movie that will leave your unsettled and weired out afterwards, look no further than Kairo.
4½/5