I have always been interested in dramas with cult and serial killer elements so I was immediately drawn to this title. The first few episodes did not disappoint but in the middle and towards the end, the show seemed to get too ahead of itself with the constant flashbacks/time skips and constant complications. I was concerned when only 2 episodes were left but closure was nowhere to be seen. The writer/director seemed to realise this as well and certain plot developments were hastily explained/not explained at all. Unfortunately the ending fell short of what I had hoped for and I still have many unanswered questions. Uhm Tae Goo's character had many long, circular monologues which I felt were unnecessary and did not do much to advance the plot other than to continuously highlight the fact that he was a total nutcase. The ending fell short of all the various events that they were trying to set it up for at the start. I wished they had decreased the number of monologues and provided some answers instead but this is just my preference for more "closed" endings. Also, there are a few "jumpscares" so take note if you have a weak heart. Other than that, the cinematography, acting and production value are excellent.

The reason why I rated it so low in rewatch value is because this is a show that mainly hinges on the suspense and finding the reasons/motives behind the various happenings. In my opinion, these questions were not sufficiently answered hence I would not rewatch it (despite the high production value).

Conclusion: watch this show if you like cults, strange murders and The Ring.