Pulse (2001)

  Okay, so when I added this movie, I was expecting ghost horror not existential horror.  Which is on me.  It's always better not to bias yourself going in with too many expectations.  And this turned into kind of the perfect quarantine movie.

A handful of teenagers become convinced that the recent spate of suicides among their peers is caused by a mysterious website.  Then doors sealed with red tape start appearing as the angry spirits are pushed out into our world.  Michi (Kumiko Aso) and Kawashima (Haruhiko Kato) try to survive as their city and then the world is affected by this phenomenon.

Oh, 2001.  Remember when we thought the Internet was going to kill us?  Like I said, this isn't really about the ghosts.  It's about the isolation people feared the Internet and then social media was going to exacerbate until everyone was stuck inside staring at screens, unable to form human attachments.  Research has tended to show that social media and too much screen time is especially detrimental to young children, but this movie plays it as hysteria, responsible for all the ills of the world.  The scenes of the two main characters navigating the empty streets of Tokyo, one of the busiest cities in the world, is astonishingly prescient, however.  It's currently streaming on Tubi.

Content Warning:  multiple suicides by various methods.