All I can say is, the jump scare got me - job done! 
The story was really intriguing from the start. Sadly, I didn't see it go anywhere once the character was down in the basement, but there is a lot of room for improvement. Loved the sound design, the atmosphere, the set up and overall look of the game. I wasn't a huge fan of movement, because it felt little awkward, janky, but again, you can easily improve that with the next builds or a new game. 
Best of luck with the development and hope to see more. 

Are the items in the basement really randomly placed? 
I was once able to find a green key and a blue key. 
However, the basement is very confusing and if the items are distributed randomly, then it is very, very difficult. 
The killer is also a little too fast. You have no chance. 
At least if you stand in a room and turn off the flashlight he should maybe walk past you. However, this only works in a few rooms.
Otherwise, exactly my kind of game