An unaged man without a memory is sent by a secret multifaith order of monster hunters as the last hope of a lineage doomed to purgatory unless they slay the lord of all vampires.
Not a great or bad movie, but still good enough to be worth watching. It's mostly interesting because of its main character, and the rest of it is piecemeal and without particular substance.
I think this movie was my initial introduction to Kate Beckinsale, and it turns out she's a lot hotter in my memory than in this actual movie. Maybe she was better-presented in the next movies of hers that I saw after this.