If you looking to watch Shadow because of the horror or BL element, then better skip this. It is neither. Might be slightly scary in the beginning but for the most part not at all. And this is coming from someone who avoids horror like the plague. It's strange because Thais are supposed to be amazing at horror.

The mystery element of Shadow is good but the problem lies in never understanding and solving the mystery till the end. Mainly why the shadow is obsessed with Dan. There were quite a few things about the shadow's behaviour that didn't make sense. And some of it got very weird (sexual). Trin's character was also a confusing one in some moments.

The actors did a good job overall but the story could have been laid out better with at least the main answers. The ending was interesting which begs the question if we will get a follow up season to this. If yes, then I hope they tackle the doubts left in people's minds. Although I believe this show meant to end at a shocking note.

It's good for a one time watch. The OST at the end of each episode is nice. The VFX are also decent.