Right now you are facing a black cupboard and a wall with a frame, now turn left and move forward towards the staircase, go upstairs and move forward, where you will find an another staircase, go again upstairs and pass through the pathway until you reach a restroom at the end, now you are at the entrance of the restroom, move forward towards the staircase which is in front of you, face towards the closed door and the stairs which is your final destination.