Turn back from the place you are standing and move forward, now you are facing towards the cupboard, slightly turn to your left, you can find an opening infront of you, move towards the opening and exit the room, now you are facing towards the window, turn left and move forward towards the staircase, slightly turn to your right and move a bit forward, now you are facing towards the wall, slightly turn to your left and move a bit forward, now you are facing towards the closed door, that would be your end point.