The characters' dynamics were very interesting and pretty well-written. The two leads had many unspoken sides of them that were revealed by their behavior, interactions, and short dialogues. This was enjoyable except when it came to Jin Pyeong's PTSD. We knew he had it from only one 5 min or less visit to the doctor's and then it was never mentioned again. We only knew that his depression, perhaps his panic every time his obsession with the girl was stopped, and his alcohol dependency were related to the PTSD. I feel like more emphasis could have been given there, but it was still heartbreaking to know that he was suffering and where his actions stemmed from.
I enjoyed the movie overall; it was quietly, realistically artistic in its shots, the characters were written well and the actors fulfilled them. The supporting characters were also developed nicely but not distracting to the leads.
Even though I feel like Jin Pyeong was crazily in love with her, I still more strongly suspect that he was obsessed and in love with their sexual relationship. There just didn't seem to be enough non-sexual, lovers' interaction with one another. The climatic part of the movie was gripping, and definitely caught all my emotions and attention up until he shot himself. I was surprised that he survived and even though it made me curious as to how the movie would end, I thought the end was a bit of a let down. It came off as cliche while the rest of the movie had been executed in an original way, but I guess the finale was meant to show that he loved her, having her name tattooed on his arm idk.