Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Dumb and dumber

Contract killer Ricky Lozada, who'd been on trial for murder, develops a fixation on Rennie Newton, the medical doctor who served as jury forewoman and got him off. He starts stalking her. Enter Wick Threadgill, the troubled, brooding, mentally unstable police officer (are there any other kind?), who hopes to protect her -- and score with her, and not necessarily in that order. The relationship between the cracked-up cop and the troubled trauma surgeon, never too realistic to start off with, just gets stupider and stupider as the book goes on. SPOILER ALERT. When you get to "the evil man just killed my beloved horses so why don't I make love for the first time in twenty years," you've touched bottom in dumb-ness. I just hope my I.Q. can eventually recover from having read the book.