Cool game! I think that it has a really interesting concept, and your placement of the maids throughout was effective in being creepy, even startling me a couple of times when I didn’t realize there was one behind me. Physics puzzles are always great to see, even if it is a small ‘proof-of-concept’ one.
It would be good if the game was a bit more explicit as to what items are supposed to be interacted with/ dragged, as the first time I played I accidentally lost the key in a wall and had to restart. I also think that adding sounds and playing around with the lighting a bit would help in developing the atmosphere.
I saw that you marked this as a ‘prototype’, so I really hope that you do go on to develop this into a bigger game, as I think that there’s a lot that you could do with it.
Good job!