What a cool little story! I adored the segment with the floor falling apart. Then tension build in the underground section was good, and I especially liked the use of a cell phone as flashlight! It made the character feel unprepared for the underground journey.
The voice acting was very good, and I thought the movement in the begining sequence was very well done.
I really appreciated how you began and ended the game with the same crackling fire. It was just a touch unsatisfying not to hear a giant fwoosh of a gasoline fire at the end. If you decide to come back to do some polish on this, I'd suggest finding a more intense fire ignition sound. You can keep the wonderful symetry by using it as a transition from the opening sequence to the gameplay, then use it at the end and have the sound die down to the same crackling of the fireplace as the begining.
Great jam entry, overall!