Tokyo Ghoul/Toukyou Kushu - A grotesque and melancholic journey into the psychology of "Ghouls": humans that eat other humans. Also contains some excellent fight scenes and characterization. The more recent chapters (60~66) are some of the best manga work I've ever seen and the author's creepy (in a good way) art style compliments the content in a magnificent way; It gives it a strange finesse. Very highly recommended.