The pale visitor

A cataclysmic event has occurred. The sun is burning people alive in the day, and at night, strange doppelgängers, nicknamed "visitors", attempt to ravage people's homes Yet despite such dangers, people go out at night looking for refuge from the Sun's flares. Some have knocked on your door and you have had to attempt to distinguish these "visitors" from regular people. Most of them are difficult to point out at a first glance, but this one...... is stranger. He is eight feet tall, impossibly thin, and the skin he wears sags down his torso. He is mostly bare apart from one single pair of black pants that he struggles to keep on his paper-thin hip bone. Yet despite all these abnormalities, he has perfectly straight white teeth, and seemingly combed hair. So, what will you do? Will you let him in?