Wowzers this is a good submission. Very professional, I could believe this was a demo for a full game. Cool unique game mechanic. Voice acting was quite good. The atmosphere and art style is amazing. I thought this was only a puzzle game at first, and was just thinking "These guys should remake this as a horror game" right when the first jumpscare came at me :D
For improvements, I would suggest upping the light radius of the lighter (maybe 25-50%). I found it a bit too restrictive, making it hard to navigate without looking at the floor the whole time. Also makes it harder to admire the surroundings and the work put into them.
Definitiely one of the top games I've played this Jam. Well done!