Vicious

Includes bonus alternate ending. God made these dogs, but man made them vicious.... When successful author Jeremy Liden takes his friends up to his vacation cabin in the wilds of Wisconsin, he was hoping for a relaxing weekend. What he gets instead is a never-ending ordeal of snarling terror as he and his guests become trapped inside by an unrelenting menace that does not understand mercy. By the time the night is through, not everyone is going to make it home in one piece.