They aren't necessarily frightening, but do essentially fit the entire horror genre to a certain degree.
SHOWS:
Shokuzai (2012)
Border (2014)
The Guest (2018)
The Fearless (2019)
The Cursed (2020)
Ju-on: Noroi no le (2020)*
All what is listed above are shows that have already aired, and a few I can name off the top of my head. I will edit this comment later, and provide you with films. I just need to go through my Letterboxd to find them. It might take a while, but none of the less I will get back to you.
FILMS:
Cure (1997)
Audition (1999)
Séance (2000)
Pulse (2001)
Suicide Club (2001)
The Eye (2002)
A Tale of Two Sisters (2003)
Shutter (2004)*
The Red Shoes (2005)
Voices (2007)
Macabre (2009)
I Saw The Devil (2010)*
Bedevilled (2010)
The Wailing (2016)*
Satan's Slaves (2017)
May The Devil Take You (2018)*
Eerie (2018)*
Svaha: The Seventh Finger (2019)*
Most films that I recommended are older, but even now still live up to their quality. There are also varying levels of horror in the films listed. Some may range between horror based suspense, metaphorically sinister, using frightening imagery, and bordering on the more grotesque side of society. If you see a star at the end of each recommendations release date then they can be found on Netflix.
