It’s an obstacle room represented by an empty hallway.
As its form suggests, there are only 2 doors, that means only 2 possible directions to do your actions. The hallway will always rotate in the direction a new player is coming in, to get more visitors it can. But in order to leave the room you must choose between the 2 directions available. The directions of this room will always be updated so that you don’t fall in mistake, read the last update before programming your next actions.