The Thousandth Floor

Pretty Little Liars or Gossip Girl but in a futuristic sky rise city. There are five perspective characters, three of which are nearly identical rich girls. It's exhausting to keep them straight. The prologue has an unnamed girl falling from the top floor. By the time the story reaches that point again, I was still getting characters mixed up enough that it took me a bit to be sure who it was.

A dumb future is better than this dystopian present, so I'll probably continue the series. But I'll probably wish I hadn't.