In the pursuit of fame, how do you know when you've gone too far? Not too long ago, Cass was a promising young playwright in New York. But at the height of all this attention, she found herself at the centre of a searing public shaming, and fled to Los Angeles to escape - and reinvent herself. Once there, she meets her next-door neighbour Caroline, an enigmatic filmmaker, who is constantly flanked by the stars of her current project: a group of teenage girls. As Cass is drawn into the film's orbit, she is awed by Caroline's drive and confidence. But over time, she becomes troubled by how deeply Caroline is manipulating the teens in the name of art - especially as the consequences become increasingly disturbing. With her past proving hard to shake and her future one she's no longer sure she wants, Cass is forced to reckon with her own ambitions and confront the steep price of success.