"Before the Devil Breaks You" is the third installment in the "The Diviners" series by Libba Bray, where the story unfolds in the roaring twenties. The narrative follows a group of young people endowed with supernatural abilities, as they grapple with their powers and the dark forces at play. Set against the backdrop of New York City, the characters face increasing dangers that threaten their lives and the world around them.
The protagonists, including the determined Evie O'Neill, must band together as they confront a sinister entity known as the "Demon." Throughout their journey, themes of friendship, courage, and the struggle against evil prevail, showcasing how the characters evolve and grow stronger through their trials. They learn to navigate a society grappling with its own prejudices and fears.