The game plays in an alternate reality which is just like our world, except for that vampires co-exist as a small minority among humans. Most humans are not very fond of the vampires, some are downright racist, even violent. You play a human adolescent who's forced to live with a vampire family for a while. The story is full of action, romance and the occasional sociocritical undertone.
For literature, "The Vampire House" is too shallow. It's obviously written for adolescents, and not for the "Catcher in the Rye" reading type of adolescents. At times it reads like a dime novel, which would be okay for a piece of interactive fiction. Unfortunately, as a gamebook it lacks interactivity. Page after page after page it's just text, until finally a decision is required, usually just to boost different stats that might come in handy much later. Like, each evening you can chose between "studying" and "workout" (and a few minor things). This gets repetitive pretty soon. The story slowly hints at two greatly differing ends, but the way there gets more and more boring.
Adolescents might find this gamebook entertaining. Others better look elsewhere.
The story starts with a stereotype amnesia situation (*yawn*) in a lighthouse unknown to you, then slowly unfolds and thus shall not be spoilered here. The setting is... if I'd call it "simplyfied reality with magic realism elements" you'd probably think it's more exciting than it actually is. The cute game world has electricity, but its elements are usually reduced to buildings that could have existed a century or even two ago. Say, a bakery, a pub, you get the picture. It's consistent though; it's fun wandering around because the surroundings are easy to understand and seem lively, and there's NPCs where you would expect them. There's cons though. The NPCs are pretty taciturn. The plot unfolds slowly at first but is then thrown into your face in one move, with magic suddenly entering the game world without further explanation. Most of the puzzles aren't integrated into the plot, but just obstacles. The parser is functional, if not rudimentary.
All in all, I enjoyed romping through the game world and wished the author had spent more time on polishing the game. And on thinking of better puzzles. Would like to see a second game.