This books gave me Gossip Girl vibes! But think Gossip Girl with more bullying, more danger and a lot of racism and homophobia. 
At first, I didn't like Chiamaka. She acted like she was the Queen, which she wanted to be in a way. The Queen of the school. She'd do anything to get at the top. But she is one of the two only Black students at this private school. Wheras her parents can afford the school, Devon, the other Black student, is on a scholarship. He is quite, has only one friend at school and is only comfortable when he can play the piano (or keyboard). 
Up until their senior year there was no problem with racism. But suddenly, everything changes for Chiamaka and Devon. 
It reminded me a bit of the messages in Gossip Girl and the things Blair did to get what she wants (or all the other rich kids from Gossip Girl). But Gossip Girl is lowkey dangerous. Aces, the anonymous sender in Ace of Spades, is more cruel. 
I'd love to rate this book 5 stars. It was really good and tense. But I felt like there was something missing at the end. What happened with Belle? Were there any consequences for the school? Why was Devons father in prison? <spoiler>and why was he on death row?</spoiler>
I can totally see this book turned into a movie or series.