Stella Chavez is your classic good girl: straight As, clean-cut boyfriends, and soccer trophies. You d never guess that Stella s dad was a drug addict who had walked out when she was a kid. Or that inside, Stella wishes for something more. New girl Ruby Caroline seems like Stella s polar opposite: cursing, smoking, and teetering in sky-high heels. But Stella is pulled in by Ruby s infectious confidence, brutal honesty, and die-hard loyalty. With Ruby, Stella gets a taste of another world a world in which parents act like roommates, college men are way more interesting than high school boys, and there is nothing that shouldn t be tried once. It s not long before Stella finds herself torn: between the best friend she s ever had and the friends she s known forever, between her family and her own independence, between who she was and who she wants to be. But Ruby has a darker side, a side she doesn t show anyone not even Stella. As Stella watches her friend slowly unravel, she will have to search deep inside herself for the strength to be a true friend, even if it means committing the ultimate betrayal.