约翰患有严重的精神疾病,是一个手持钩刀的冷血杀手,而他或许也是唯一能看清人类真面目的人。 某法人机构的经营者M先生是现世的魔鬼,灵魂里潜藏著恶魔的欲望,而他的心理医师杰德则是唯一能看穿他真面目的人。 M先生正一步步的踏进“浮士德”的传奇境遇里,到底地狱只是一种幻象,还是一个真实的世界?An artist, John Jaspers sells his soul to the mysterious "M" in order to get revenge on the people who killed his girlfriend. Soon, he realizes everything has a price, and he is transformed into a horned demon with a passion for killing. He learns that M plans to release the Homunculus, a giant Lizard-like monster onto the earth, opening the gate to hell. Now, Jaspers must stop M before he can let the apocalypse begin...