Took me 23 minutes; this was a pretty cool mod. [SPOILERS] Thoughts/review:
Mapping/Detailing: Short on detail, but that is justified through the game play elements; you literally have to inspect everything in the traditional point and click fashion, and if there were even more entities about the player could become easily overwhelmed. Design was nothing fancy (again, justified by the length of the mod).
Lighting/Billboards: Lighting was fine, it was pretty bright to compensate for the fact that you had no lantern/tinderboxes. Billboards were non existent, but only because (from a mapper's stand point) there was no proper way the billboards could have been implemented considering the way the player had to interact with the windows/curtains.
Puzzles: A few were simple, a few more complex. I couldn't figure out the birth day for the combination (which I'm assuming was revealed from the scrambled information on the sticks), but since all of the notes had August on them, I just assumed it was 8. I thought the idea of having a little safe inside the secret mansion-base wall was so darn clever, in the end I was just mad that I hadn't thought of it before
Story: Kinda sad; the amount of suspense and emotion built up in under 10 letters amazed me. When I recieved the 2nd to last key to the "safe place", I was 99% sure a monster would appear. Then I read the note in the closet and became 100% sure. I'm not sure if that was intentional or just my wandering imagination, but either way, it was quite effective.
All mechanics, design choices and overall atmosphere/ideas considered, I'd give this a 7.5/10*, really good mod. It's a welcomed alteration from all of the jumpscare maps
* = 10/10 being quality of the original game
I rate it 3 memes.