I'll keep this review short as I've seen other reviews give much more detailed version of what I'm going to say anyway.

Unfortunately, it starts really dragging out the plot to the point where I'm skipping through episodes. I'm on episode 12 already so I will finish it, even if I have to keep skipping through because I would like to know how it ends. However, so far the characters just don't seem to be doing anything? I feel like it's clear who the bad guys are or what is related or not within the whole ghost letter and murder mystery thing... Yet, it takes the characters an extra episode or two before they link two very obvious things together. It's almost like they can be really smart in one scene and not at all in the next.

Honestly, I think this could have been a 5 star drama if it was half the amount of episodes. I think 20 episodes is too long for this storyline. It is a shame, as the two lead actors would be interesting to watch if the plot wasn't becoming so slow and repetitive. I don't think it's worth rewatching at all, once finished. If you're bored and really want something to watch though, I would still recommend that you attempt to enjoy this. The first few episode are great, just be prepared to skip through the later ones.