Intro to something

As she looked up at the pale shafts of light flowing through the dusty window, Jess realised that she didn't actually know where she was. She had regained consciousness not too long ago and had spent what seemed like an age trying to piece together the memories of what happened before this room. She couldn't think of anything. It wasn't that she had lost her memories, everything seemed to make sense, who she was, what she enjoyed, the only problem was she couldn't place the last 24 hours. Her whole body seemed sluggish, like when you got some lag in one of those virtual games her brother was always playing.
"Fuck".
As far she could tell nothing was broken but in the darkness it was hard to be certain.

It was probably half three or maybe four in the morning, the factories wouldn't stop until two at least and it was silent now. The silence was oppressive, heavy, like a wet blanket on a cold night, the low buzzing of a distant sub-station providing the only reassurance that she wasn't deaf or dreaming. Somewhere in the night a train screams over magnetic rails, the red shift of the noise making it rise and fall like the death throws of a wild animal, sending shivers down her spine. She'd better get up and get the hell out of wherever the hell she was.

What little light was illuminating the small room just picked out the outline of a large metal door in the opposite corner. It looked old, the paint rubbed from the edges where countless hands had touched, the lock surrounded by the scratches of fumbled keys.
"Shit, a lock".
Jess swore again under her breath before placing her knees beneath herself and slowly dragging her body to as close to upright as her sore muscles would allow. It wasn't until she began to stand that she realised she was missing one trainer, they were the most expensive thing she would have had with her so it figured she couldn't have been mugged. Unless the thief only wanted one shoe. Grabbing a dusty metal shelf for support she hauled herself upright and winced as she clicked her back and stretched.

Finding her feet more stable than she expected Jess headed to the door and turned the handle, to her surprise it wasn't locked. It opened smoothly and silently revealing a dimly lit corridor with those plastic floor tiles you used to see in old hospitals. The corridor stretched out in both directions easily a hundred meters or more flickering in a faint florescent blue. Its once bright-white walls and ceiling faded to a sickly yellow, cobwebs of long gone spiders hung from the corners like silk curtains gently swaying in an unfelt breeze.