Go past the big chairs and up the short staircase. Go into the room and turn hard left. Go into the bathroom and stop.
Walk past the purple leather sofa and go up the small staircase with the metal bannister on your right past. This will put you in a bedroom. There is a door to a bathroom on your left. Go into the bathroom and stop there.
Go left around the counter and up the stairs. Turn left and go into the bathroom.