Hello!
Did you get stuck after finishing a scene? If so, I'm sorry, that is a known bug in that area and we'll be uploading a fixed version soon. To not get stuck there, you need to light up the torch from the left side, not from the top. (Edit: This bug has been fixed in the newly uploaded version 1.2)
If you're otherwise stuck, you just need to keep finding and lighting up torches along the walls. They're usually close to the dark, impassable area. Just hit the interact key along the wall and you should find them.