Story :
I really like the story. It shows 2 mountain rangers of Jirisan and a killer in the mountain. I really like the multiple 'present' trope . Did I ever get bored? Maybe, not really. Hyunjo as a ghost roaming the mountain was a really good idea. The scene were Hyunjo was trying to grab the microphone and speak to Yigang was so emotional tears were pouring out of my eyes. Also I don't know why everyone's complaining and saying Signal was so much better. We got robbed bla bla bla. I haven't seen Signal but I don't know why y'all are upset. Probably because of thr multiple present bit, but it won't be good if they pulled that on this storyline. Because just no...

Acting :
So good could never get a better fitting cast than them.

OST :
Comeon u know the answer Yours by Jin and the other songs were so good I'm an army btw.

Rewatch value :
I don't rewatch mystery because yeah I just don't but I really would on this one the plot isn't all tied up agaisnt the mystery so you'll totally see me rewatching it.