Story 6/10
Even though this series is really short having only 4 episodes, it feels draggy while being predictable. While I understand that it focuses mainly on psychological/emotional side of things, I think it would definitely work better as a movie. A lot of unresolved tropes and a metaphorical (kinda open) ending that will make people either love it or hate it. While I get it why it was done in that manner, I wish we got the answer to the main mystery but it never happened (other than a vague hint). The same goes for unresolved tropes. For example, I do not know why we got so many scenes with the detective.

Characters 7/10
Characters were mostly well written and even though in the end all people from the village played a part in all of this, you could still sympathize with stories of Ok Soon, Jin Kuk, In Seong or even Hyun Min. Sadly it cannot be said about In Seong's parents and their actions. What bother me the most is the fact that Ok Soon did not really feel like a main character. For me, In Seong who was gone for almost 2 episodes felt more of a main character. Expected a bigger role of Ok Soon in the story, especially when you compare it to the role Young Soo played in the story.

Acting/Cast 9/10
A lot of veterans as well as young actors that did well job.

Music 9/10
Not much to say about music. The main soundtrack helped keeping the suspense and mystery feeling even when it was all already obvious. While nothing expectional in that aspect I would not change anything regarding music, hence my high rate.

Overall 7/10
I think it is worth watching if you like psychological/emotional stuff since this series focuses on those aspects.