Was honestly surprised as to how good this was. It was scary and silly at the same time and enjoyed myself playing it. The guy huddling in the corner was really creepy and gave me the chills, and the gameplay was simple yet fun. And got some creepypasta vibes from it (Not sure if that was your inspiration) and definitely will look forward for more!
Only suggestions I can give is to make the animation for the disappearing shadow people different as the shrinking animation was a little silly (though fun) and took a little away from the dark tone of the game. And also to add a little more story to it; would love to see why there are shadow people in the house, and how the Night Chat started, etc.
Great game and you did a great job n it!