The Addiction is one of the more thoughtful films about vampirism available today.
While the film is incredibly thoughtful, with loads of subtext at every corner, it borders, and sometimes crosses into, pretention. There are times where the narration is attempting to add subtext, but it's so heavy-handed that the film loses sight of the fact it's a horror film. I'd argue it's thought piece first and horror film second, honestly. Maybe that makes it even more frightening.
Christopher Walken is wonderful, and Lili Taylor does a fine job, as well. The choice to shoot the film in black and white was a great idea, as well. There's a real focus placed on the ideas the film is pursuing.
Even though the subject of the horror in this film are vampires, the movie is truly describing humanity.