Twelve jurors. One locked room. A verdict that will change everything.

The case against David Kellerman seems open-and-shut. Accused of the brutal murder of his stepdaughter, Mia, the evidence is damning, the motive is clear, and eleven members of the jury are ready to vote ‘guilty.’ The public wants justice for the birthday girl.

But Juror #9, Anya, can’t shake a feeling of profound doubt. A small, overlooked detail in the evidence—a detail that connects to her own secret tragedy—suggests a story far more complex than the one the prosecution presented. As she pushes back against a quick conviction, she forces her fellow jurors to look closer, peeling back the layers of a seemingly perfect crime.

What begins as a simple deliberation spirals into a frantic, unauthorized investigation. As the clock ticks in their claustrophobic jury room, they uncover a chilling conspiracy that stretches far beyond their small town. The truth is more shocking than the crime itself, and the real predator may not be the man on trial.

Perfect for fans of John Grisham, Lisa Jewell, and a 12 Angry Men for the modern age, The Birthday Girl is a gripping psychological and legal thriller with a twist you will never see coming. Find out what happens when reasonable doubt becomes a terrifying certainty.