Written by 
According to the opening title card of Han Dong-seok’s genre-hopping horror, sin is like a lost child that will one day come looking for its parents. The film’s ostensible heroine at times hears voices suggesting that someone or something will eventually come looking her, and later says that she is ready for their arrival, but before that we have to wonder what it is she means and what if anything that is happening is actually real or at least in keeping with our assumptions.
There are many reasons why we begin to feels we can’t trust Si-yeong’s (Kim Yoon-Hye) perspective. Not only is she already somewhat distant and preoccupied on her arrival at a disused university in the mountains but we also later learn that she’s taking a large amount of medication apparently for migraines and PTSD stemming from a barely remembered accident. She also seems less than pleased to encounter former colleague Chae-yoon (Song Yi-Jae) who brings up memories that seem unpleasant to her while there’s a kind of frostiness between them that’s only exacerbated by the fact Si-yeong was not even aware she’d have a co-star in this experimental dance movie directed by a man known for being “unkind” to actors.
In any case, strange things do indeed begin befalling her from a body dropping right in front of her feet before she enters the building to the eventual murder and suicide of her colleagues who then return as zombie-like creatures. The film cycles rapidly through a series of genres beginning as a slasher with a Suspiria-like sense of eeriness as dancer Si-yeong’s mental state starts to unravel before drifting into the undead, cults, and shamanistic folk horror with the weird symbols dotted around the campus.
Because things are very wrong on the outside too, Si-yeong even ends up running into a gang of murderous corrupt cops paranoid she’s found their stash of stolen drugs while otherwise pursued by riflemen apparently employed by a vengeful CEO. It’s true enough that we don’t know what’s going on for most of the film, and part of that may be that Si-yeong doesn’t know either because her mental state is unstable. We’re not even really sure if Chae-yoon is real or merely Si-yeong’s projection of her internal conflict, dressed as she is in the same outfit and with the same haircut to the point the two women are often barely distinguishable. Perhaps it’s this unpleasant memory that Si-yeong is trying to avoid, though it’s clear in very general terms that she’s running from something as much as she’s being chased and that her flight may be orchestrated to bring her to a specific location whether physical or spiritual.
What’s chasing her is the apparent “sin” of the title, though everyone might not see it as such or maybe believe their own sins were either justified or will be paid for later. For the purely evil, sin as a concept may not even exist if there’s no prospect of remorse though it’s hard to reconcile the docile, sweet and somewhat etherial Si-yeong with the fragmented memories of a past that may or may not be her own. “Thanks to you, we all became monsters,” she’s later told by someone about to something pretty monstrous but maybe they too were monstrous to begin with, or nobody was, and a well-meaning attempt to exorcise evil from the world has only produced more of it.
Just when you think you have it all figured out, Han throws in a post-credits sequence pouring more fuel on the fire and hinting at even greater back story in a world ruled by dark and unseen supernatural forces. It doesn’t make sense, but wilfully so and frustrates in a positive way in our desperation to understand something that cannot be understood much as Si-yeong attempts to understand the rapidly disintegrating world around her. The concrete fact does seem to be that one must pay for ones sins, though those who do may not be the ones we’d expect. Gory and incredibly creepy, the film plays with our senses as much as Si-yeong’s, undermines our sense of reality, and finally leaves with the unsettling vision of a pervasive evil lurking in the mirror or the depths or the dark corners of a mind already shrouded in delusion.
The Sin screened as part of this year’s New York Asian Film Festival.
International trailer (English subtitles)
Windows on Worlds 