You will start by facing a window. Turn around and take a step underneath the lights. Now facing the two closed doors. Turn right. Walk towards the room on the right. You will see a bed on your left. Walk towards the foot of the bed and right in front of you there's an arched opening. Walk through this opening towards the staircase. Once you're facing the railing, turn right. You should now be facing the window and on your left is the railing you're done.