Red Dragon by Thomas Harris
Sexual hunger; demonic violence; sinister logic - the lethal components of a deadly formula driving a psychopath in the grip of an unimaginable delusion; a boastful killer who sends the police tormenting notes; a tortured, torturing monster who finds ultimate pleasure in viciously murdering happy families, and calls himself...The Red Dragon. Special agent Will Graham has been assigned to similar cases before, cases where he was able to see and feel WITH the madmen, anticipate their moves and, most terrifying of all, be vulnerable to their horrifying brutality. Now Graham is reluctantly lured out of retirement, to find an opening to the evil mind of the Red Dragon. "Red Dragon" is quite probably the most suspenseful, utterly compelling thriller ever written.