Names are all wrong in the Warhammer fantasy universe. I mean, who calls a badass vampire "Radu" ? Seriously, it's a vampire not a baker.
Anyway, the premise in "Curse of the necrarch " is very straightforward : big fight between humans and undead. That's basically it. There is some "background" plot to this but it's not really that interesting (or sufficiently developed). Overall i'd say the books is kind of meh.