It’s 1927 and the strict laws of prohibition have done little to temper the roaring 20s nightlife, even in the nation’s capitol. Everyone knows the booze has never stopped flowing, especially amongst the rich and powerful, and seventeen-year-old Gertrude and her best friends Clara and Milly are determined to get a taste of freedom and liquor, propriety be damned.

But after sneaking out of the Washington Female Seminary to visit a speakeasy, they return to discover that their controversial young headmistress, Mrs. Rose, has been murdered.

Reeling from the death of her beloved mentor, Gertrude enlists her friends in her quest to clear Mrs. Rose’s reputation, while trying to keep her own intact. But in Prohibition Washington, it’s difficult to sidestep grifters, bootleggers, and shady federal agents when investigating a murder. And with all the secrets being uncovered, Gertrude is finding it harder and harder to keep her attraction to her best friends hidden.

A proper, upscale life is all Gertrude has ever known, but murder sure makes a gal is all that glitters really gold?