I'm a great fan of Koontz, and thought this might be an adaptation worth watching. I admit that due to the complexity of most his books, with all its subtlety, it is difficult to make a perfect adaptation, but this movie just barely made as a mediocre production. In an effort to make the movie 'cute' instead of the full-fledged horror it should be, it concentrates so much on the dog and its antics, but leaves us to imagine the monster for the most part. Given that the monster is at least as smart and complex as the dog, to see it reduced to simply a killing machine was a waste. And I still prefer the book ending to the movie ending - at least it made more sense and left one feeling a bit sad at the monster's demise instead of gloating over it.