Someone has recently been leaving notes in your room. Who is your stalker, and why are they stalking you? Is it safe to write back?

All Tyler wanted was to live a happy, normal life. Hang out at the mall with his friends, go to highschool parties, spend vacation time with his mom. But no, he can't do that. Not when someone's out there.. watching his every move, studying his interactions towards his loved ones and peers, planning on how they are going to kill them... including him.