A kick-boxing American tourist gets dumped by his girlfriend in Thailand. On the way back to the hotel, she gets lost and follows a local vampire into dark alley and gets turned. He tries to rescue her, embroiling himself in a war between feuding clans of vampires. There's a whole backstory about the good vampires and the bad vampires and the vampire hunters and an 800-year-old curse. The important thing is that this is a martial arts vampire movie. Except there's not actually that much martial arts. The vampires spend more time chasing each other around on dirt bikes than they do martial arts fighting. So I guess this is really a dirt bike vampire movie? Anyway, there are a bunch of vampire dirt bike chases and a couple vampire martial arts fights and an epic final battle which is way less epic than some of the dirt bike chases. But, to be fair, that one dirt bike chase was really epic.