They have lived in the shawods.
They are the last of their kind and now their time has come.
Preparing for the yearly 30 days of night most town residents left the town while around 120 people stay back to keep the town running or just enjoy one month without sunlight.
Some will survive while others surrender to death. The 30 days of hiding, crawling through the snow, freezing, starvation and fear have begun and there is only one person whose insticts might be able to save the last survivors until sunrise.
Finally someone wrote a book about the real nature of the vampire as a blood sucking monster. There is no mercy and who gets caught dies.
Now THIS is what I'm talking about! I don't know how the movie will be, but this book was great. If you love vampire and/or zombie novels, you'll truly enjoy this. This is the first book I've read by author Tim Lebbon, but if he writes this well in all of his books, it won't be my last!
This is one of those rare cases where you should read the book, before watching the movie.
The reason is the book is in many areas "dead on track" with the movie. Which given the reverse is almost never the case. Both are worth it, reading and watching. Enjoy.