Nightcrawler
Lou Bloom is just an alien that tried to learn how humans acted by watching motivational business videos.
Anyway, Nightcrawler is a fantastic film with many positive qualities and very few bad ones.
It has great acting, a brilliant protagonist, good supporting characters, fantastic dialogue and quotes.
Although Lou Bloom is a horrible person, you never feel as if you want him to be caught until a certain scene later in the movie due to the fantastic writing.
I would very much reccomend you to watch this.