Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not one of her better efforts - very very implausible solution

AC's mysteries usually end with readers kicking themselves for not having seen the clues that point to the murderer. In this case, the solution is so far-fetched that it beggars belief. The only redeeming feature is that the murder was committed in a fairly ingenious manner. But all in all, the only kicking you'll be doing is on yourself for having wasted ten bucks and around 4-5 hours of your reading time.