Source taken from Wikipedia.org
Kemonozume "Beast Claw" is an anime series written and directed by Masaaki Yuasa, animated by Studio Madhouse, and broadcast on WOWOW from August 5, 2006 to November 5, 2006.
Since ancient times there has been a race of flesh eating monsters called Shokujinki "Man-Eating Ogres". They can assume human form or otherwise live in the shadows while feeding on humans.
