Kairo aka Pulse (2001).

Not exactly scary but an odd existential Japanese ghost related piece.

It reminded me at times of David Lynch in it's non-linear approach.

Basically it a film about an apocalypse of loneliness and ennui.

Apparently the realm of the dead is full and the ghosts are fed up of the living dying and stealing their jobs so they keep people in a state of eternal isolation until the vanish or attempt to kill themselves. They use tools designed to aid communication to push people away from each other.

Despite how that sounds it's actually a very subtle film, probably too subtle for your average Asian horror thrill-seeker.

It starts will people just paying a little less attention to each other and people looking awkward as their personal space is disturbed by people trying to explain things or ask for answers.

As the film progresses less people are visible.

It's a really interesting exercise in slow creeping weirdness.

I haven't seen the American remake and I'm not sure I want to as it might spoil my memory of this unique film.

Four stripes of red tape.