He was the best detective. Until I became a hunter. Years later, the legendary Inspector Nicolas Lenoir became a broken man, spending his days at home and drinking in the evenings, recalling the nightmares of his past. Ten years ago, Lenoir barely survived a battle with the vengeful ghost Darkwalker, who punishes those who desecrated the dead. However, Darkwalker will not give up his prey so easily, and Lenoir always knew that sooner or later he would return for him. When Lenoir is called to another strange incident, he approaches the job with his usual apathy until his best informant, a street orphan, is kidnapped. Desperate to find his young friend before something terrible happens to him, Lenoir is willing to do anything to catch the monster responsible for crime, even if it means going straight to the weapon that will bring him death...