I couldn't get to anything notewirthy in the game.
The door is locked, and you need to enter the password with a qwerty keybord in there, but no clue for the password.
I only found that "LOOK AT FLOOR" reveals a skeleton with a a jacket, a note and the map.
The note says:
I fear I may perish soon. The portal sent me here. Now, I'm trapped with no way out. I think this map holds the key but I can't decipher it.
So it is obv the map. We need somehow to extract more information from it. but no clue yet.