You are facing towards the window, turn left and move forward, to the left, you can find a wash basin, move forward towards the opened door which is on your left, turn left and move towards the staircase, get down the steps, you can find steps infront of you, go up the steps, slightly turn left and move towards the closed door, now you are facing towards the stairs, slightly turn left and stand on the second step, that would be your end point.