Arthur de Pins bande dessinee in English. Now an animated feature film.

From the publisher:

There's excitement in the Zombillenium horror themed park run by actual monsters. Brought in by Behemoth himself, the vampire Bohemond Jaggar de Rochameau IIII is officially supposed to help CEO Francis in managing the park. But the employees expect the worst: isn't he known as a cold-blooded killer? If one looks more closely, the reasons for his coming may seem less anodyne than announced. Of course, his mission is to increase return on investment for the shareholders, but for Behemoth that return has to be in souls. Francis is appalled but obligated to kowtow to the almighty consultant, determined to take power and pervert the rules of Zombillenium. Meanwhile, Aurelian goes through a bad patch. Depressed by his immortal status and the absurdity of his life... sorry, his death, he's burned out. And burnout, in a powerful demon, can be devastating. Held back in extremis by Gretchen, he avoids the worst. This is timely, because Gretchen has a plan for him... A particularly biting new episode of Zombillenium in which we discover the underbelly of the most monstrous amusement park in the world.