Kairo

Kairo (回路 or "Circuit") is a 2001, a rather good Japanese horror films. Kairo was remade for American audiences as 2006's Pulse(with two equally as bad sequels).

First off don't touch the US remake with a barge pole, it is full of empty headed actors who thankfully get killed off at a rate of knots before they get to damn annoying. Indeed had the entire cast and production crew of the US remake died, that would have been the best thing to ever happen to Pulse and its follow on films.

The Japanese original has better special effects, a million times more atmosphere and actors who can act rather than who appear to have been recruited for giving the director a blow job.

http://uk.imdb.com/title/tt0286751/
http://en.wikipedia.org/wiki/Kairo_%28film%29
The plot centers on ghosts invading the world of the living via the Internet. The film is a philosophical exploration into the alienation and loneliness of modern existence due to technology. Communication breakdown and isolation are the main themes of the film. The film features two parallel story lines.
The first storyline involves a young woman named Kudo Michi (Kumiko Aso) who works at a plant sales company. She has recently moved to the city and her main friends are her three colleagues, Sasano Junko, Toshio Yabe and Taguchi. At the start of the film, it appears Taguchi has been missing for some days working on a computer disk. Michi goes to visit his apartment and finds him distracted and aloof; in the middle of their conversation, he casually makes a noose out of a length of rope, goes into another room, and hangs himself. Michi and her colleagues ponder why Taguchi committed suicide but cannot find any answers. Inspecting the computer disk he left behind, they discover it contains an image of Taguchi staring at his own computer monitor, which is displaying an image of Taguchi staring at his computer monitor, creating an endless series of images. Zooming in on a dormant monitor beside Taguchi's primary monitor, Michi and her friends discover a ghostly face staring out into Taguchi's room, though he appears to be alone. Yabe later receives a phone-call that seems to be of Taguchi saying "Help me", over and over, so he goes to his deceased colleague's apartment and sees a ghostly black image imprinted on the wall where Taguchi died. Nearby, he notices a door sealed up with red tape. Entering it, Yabe encounters a ghost who corners him in the room. Yabe shows up at work later that day depressed, uncommunicative, and ultimately takes to hiding in his apartment. When Michi finally goes to check on him, she discovers that he has dissolved into a black mark on the wall similar to the one that appeared when Taguchi died. Michi and Junko are soon alone at work; their boss has also disappeared. Doors with red tape are cropping up all over Tokyo. When Junko enters one of them, she is attacked by a ghost. Michi rescues her, but the encounter proves too traumatic for Junko, who begins having a nervous breakdown and, having lost the will to live, dissolves into ash.
The other storyline features Ryosuke (Haruhiko Katô), an economics student who has recently signed up to a new Internet Service Provider. Once he successfully accesses the internet, his computer accesses a website by itself, showing him a series of disturbing images of people alone in dark rooms, either stationary or exhibiting bizarre, depressed behavior. At the end of the series of images is a black screen with the text, "Do you want to meet a ghost?" That night...