Played this and got pretty immersed in the experience for the duration of the playtime, although i couldnt proceed beyond a point. Well done on building the atmosphere and narrative! I have read the original story from which this was adapted and i think youve done a good job story wise. In a short duration of time, you were able to do some nice world building and character building and the mechanics supported this well.
A few suggestions on improving this - While i love the original audio which nicely builds up the tension and effects like the footsteps and the heartbeat (which grows in volume when you move?) etc. which help the atmosphere building, for the gameplay itself SFX seem to be light, for example when i click on anything clickable there should be an immediate response audio-visually. I understand that since the images are complete images its difficult to show animation for objects but even a small clicking sound or some particle effect would help the gameplay greatly. Since the activity that the player is primarily doing is pointing and clicking, it should feel really satisfying. A drawback of this genre of games is that if youre stuck at a point, theres just no way ahead which was the case for me! So usually i would recommend that you add some hints to nudge the player in the correct direction if a certain amount of time has passed.
Your take on the theme is quite unique and ill give you points for that for thinking out of the box! Overall i think you did a great job in building up a really nice narrative which fit the theme quite well and it was an interesting experience!