Just as with the first "Subspecies", I liked this sequel, but I'm not really sure why. I didn't really understand it too well, but found it enjoyable regardless.
I guess the movie takes off where the first one ended, with the girl now turned into a vampire and her sister coming to Romania to look for her.
Anders Hove thankfully reprises his role as the vampire Radu. He is to the Subspecies series what Angus Scrimm is to Phantasm.
Subspecies and Phantasm are similar franchises. They have trappings that draw you in, and not much in the way of story or characters to complicate matters.
And if you liked the first entry in both series, it's highly unlikely you won't like the second.