You're starting in a bathroom, facing a shower and an empty closet. Turn slightly right and you'll see the sink. There's an open door immediately to the left of the sink. It's another closet. Take two steps in there and then turn left. Take two steps out in the hallway through the open door, passing the thermostat on your right. Once you're in the threshold between this catwalk with the stair railing and the bedroom, you're done.