Interesting game. I had no idea what I am doing for some time but it somehow made me more interested in the result. :D I like the style of backgrounds.
You may consider some info the first time you see the evidence cards that you it is something that will lead you to the Ghostface somehow. I had now idea why I am looking at someone in the baloon and what the fact that there is Ghostface in another baloon means.
There were some things that confused me with the map and locations:
The first one was that it wasn't clear for me sometimes that I can or cannot move in some directions. The road showing possible directions in some places was a grat hint. At the same time, there were places with the road that wasn't leading anywhere, like at the place with train. There were also some moments when I thought I have only 2 possible exit points, but there were more and it wasn't clear for me because of the background suggesting something else.
Another thing are the red squares on the map. At first I thought they mark places I can't go, so I didn't even try to go there. When I realized it was wrong assumption I had to go back to some places.
I think it is worth working on collisions in some areas, as the blocking was sometimes irritating, as I didn't expect it in some places.
There wer some plot points I didn't really get at the beginning, possibly because of the order I visited areas. For example I didn't even know who the hunter is when I found a coin and still when I pressed 0 I had a hint that I should use it to trade with the hunter. And when we traded I didn't know why he gave me this particular item.
It was a fun play overall, the music accompanying some specific events was a cool idea. It made the game more intriguing in some sense. :D