Wish there was a comment section here...

The game seems like it could potentially be interesting, but the demo is so short it's impossible to say for sure.

Maybe it's good and maybe it's not.
The artwork is neither good nor terrible.

The story is thus far a classical detective story with a potential demonic twist --exactly like a million other stories. 

Nothing you wouldn't know by just reading the summary of it.

As I said: The demo is too damned short to properly grasp if the game is good or not.