If the werewolf would be just be some man-animal then you have to cut about 98% of all the werewolf movies ever made. It's not just some wolf with human elements in it cause then he would be able to be reasoned it. Most of the time the monster is pretty evil. And doesn't do things just to act like a wolf. One of the best books I've read was a short story where basically a man changes into a werewolf against his will. And hides himself in his celar in a locked chamber of sort. But slowly and surely in his daily life changes, his personaly changes as if the wolf is taking over completely. And at the end he's like so what if innocents dies, I will be free.