The cases as they are, are not that complicated, it is much more about the characters themselves, their story, their motivations and how they deal with grief and danger. There a quite a few scenes where it seems as if "nothing" is happening -- those scenes show the characters, what they think, how they (re)act. Sometimes theyare there for the atmosphere, to allow for some introspection.

As such, the pacing can feel slow at times, but in my opinion, there is not one scene that's superfluous ar dragged out. Everything has its time.

This, and the fact that nothing is glittering or modern in this drama, make it exceptional. The main character is linving in a small neighbourhood in a house that doesn't even have an indoor toilet; the police in Shangta have their quarters in an old cinema, where there's no heating and the walls are crumbling. The whole town looks more or less run-down -- as do the actors. There are no airbrushed, beautiful people in colourful clothing here. Everything feels real (and very, very cold).

I love how down-to-earth the police are in this drama. While I certainly don't expect any real criticism of the system, the way the police officers make the best out of their limited ressources, how they grumble a bit about them but basically take them with a bit of humour; how they plod along and try to find the girl, but as humans, fail again and again -- this also makes the characters relatable.
And after the cases are closed, they all return to their daily lives; they live on as before, but something in them has changed.

Another point that I loved were the female characters, few of them as there were:
* The girl, of course. What a great actress! And what a strong and resourceful character! This is not a pitiable and helpless victim.
* The karaoke bar owner. She lost her family at an early age, is clearly jaded -- and still finds humanity and love in herself.
* And last but not least, the fire watcher ("bear lady"): She was beautiful in her love for the forest and the creatures living there, but was very realistic in her approach to life and death. She lived alone and was happy with that. She felt very solid and grounded.

One last mention goes to the music -- both the songs for the opening and closing credits are beautiful and fitting for the rest of the series.

[Cross-posted to Viki]