After seeing both the Swedish and American film adaptations of this novel, and liking both, I was excited to read the novel. The books are always better, right? Not in this case.
Oh my. Where to begin? As well as being an original, creative vampire tale, I think Lindqvist was trying to make a larger statement about the moral decay of society. Pedophilia, alcoholism, and excrement all play a much too large role in this novel. Raskolnikov from Dostoevsky's "Crime and Punishment" is mentioned a few times, alluding to this societal decay theme. If Lindqvist was attempting a modern, vampirish take on "Crime and Punishment," he failed. There are way too many points-of-view (including a squirrel, at one point), truly gratuitous descriptions of pedophilia, and the entire book leaves you wanting to take a shower.
Kudos to both films for getting the great nugget out of this book and leaving the rest behind. Gross. Stick with either film (I prefer "Let Me In."). I now understand why the person who lent me this book didn't care if he ever got it back.
