Greetings, HESNAIPER!
I tested your game from steam and, honestly, I doubted at first your project, However, after playing it for a while, trying to find the clues, getting busted by that "thing" in the corridors of the house and looking at the details of the game, I really liked it (although, maybe you should try to improve the house's texture's materials along with the shape of the lamps. It doesn't feel pretty smooth for my taste.).
Another thing that i liked is the easy controls of the game along with the settings and the visuals. And the fact you made a tutorial that gives us a clear introduction of how it works is pretty neat.
In general, for a demo, it's a good game and I can't recommend it enough. Good luck with your next projects!