Clinical Fangs

"Dear Dad, Hi. It's me. Remember? Because I don't. I can't remember anything. Or anyone. I was told I'm Andrew Melvin McLun. I'm eighteen, apparently. I need someone to protect me from the voices screaming in my head and the monsters living in the mirrors. Please, help me. If you're wondering what I'm talking about, it's a long story, and I'm afraid I won't have enough time to tell it. They're already coming back."