Standing in front of the sink, turn around and exit the bathroom and go to the left. Once you take a step left you should be staring at a black bookcase on the right and a rug on the left. Turn to your right and continue down the right hallway, passing the painting that says "Closer" on the right. Take the first left into the bathroom and then turn 180 degrees and head back out this door you just went in and go left through that doorway. You'll enter a bedroom, walk between the foot of the bed and the wall and walk towards the shelves that have a bottle and a plate on it and once you're standing in front of the shelves, with the window to the right, you're done.