While the horror film is a constantly shifting and evolving genre, there's little argument that one of the biggest inspirations on it recently has been the internet — specifically the individual horror subgenres that have sprouted up because of it. Arguably the most popular is the Creepypasta (a style of community-oriented storytelling that prioritizes a faux-authentic first-person perspective), but there are many others, including false wikis (think the SCP Foundation), analog horror (defined by a vintage video presentation), and the one that's currently experiencing its heyday: liminal horror.
Liminal horror is a difficult genre to define, but it's mostly characterized by the unsettling nature of transitional spaces — empty malls, swimming pools, abandoned office buildings. It's not a concept new to horror (it's the focus of stories like The Shining, Grave Encounters, and even the book House of Leaves), but the internet's version of it contains an undercurrent of uncanny nostalgia, because there's something scary about locations half-remembered. Kane Parsons' Backrooms movie, based on the wildfire internet phenomenon, taps into those themes directly, and also engaged with a lot of the lore he introduced in his YouTube series of the same name — including a very intriguing and very discreet secret organization dedicated to investigating the location's many mysteries.
