Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The first 20 minutes...

...or so are promissing and even a little eerie - then it all goes down hill. Fast. Really fast. Really, really fast. The last 20 minutes are so incredibly ridiculous that we found ourselves laughing out loud. This is NOT the thriller you expected. More like something you would expect from Lifetime TV, only not as good.