One day, you wake up in jail. It's the darkest, blackest, gloomiest jail you've ever seen in your whole life. You can't imagine how they build cells where no light can creep in. It's so dark you can't even see your feet... or your hands... or even the tip of your nose. The pitch-black room cuts off any chance for you to see what kind of shape you're in. You might as well not even have a body, you think, 'cause you can't tell if it's even there.