Jorge Ortega’s review published on Letterboxd:
For the majority of the runtime of this film, I was a bit lost on what the plot was really about, then suddenly in the second half, it just clicked and everything shown before and after started to make sense and gain meaning.
Loneliness is a silent killer. In countries like South Korea, this is actually becoming an increasing crisis amongst young adults. Thus this film gives us more than one character suffering through their very own loneliness, reflecting the current state of their society and one that is very true to ours as well. We become invisible to the world, going unnoticed as we try to connect with others. Making connections with acquaintances, making friends, both become more sparse and rare and interacting with others starts to feel fake. This, in turn, makes us more vulnerable and, in a world where there are people ready to prey on the weak, it can become deadly.
This is what I love about the film, it has great themes and is also stunningly shot. My only problem and the reason why I'm giving it this rating is that it was very slow to develop – and this is coming from someone who loves slow films. While I've seen slower films, what's different here is that, as stated before, for the first half of the film you don't really understand where the plot is going or what the movie is trying to say. Our main character is also somewhat uninteresting, despite having a great performance.
I guess I'm just conflicted, maybe it was the subs translations which seemed a bit off to the point that I had to change them two thirds in. This deserves a second watch eventually, the themes are great and interesting and the end was very good too.