Seriously. Watch it.
Interesting, right? The game takes place in present day, throughout an open city that has grown up around Dracula's ancient castle. The city is "open" in the classic Metroidvania sense that it becomes more open and you gain ever-greater access to it as you unlock new powers and abilities - and your ultimate foe is, surprisingly, the same as in the last game - the literal Satan.
Dracula Vs. Satan? Yes please.