Molly Gray has always loved the holidays. When Molly was a child, her gran went to great lengths to make the season merry and bright, full of cherished traditions. The first few Christmases without Gran were hard on Molly, but this year, her beloved boyfriend and fellow festive spirit, Juan Manuel, is intent on making the season Molly’s most joyful yet. But when a Secret Santa gift exchange at the Regency Grand Hotel raises questions about who Molly can and cannot trust, she dives headfirst into solving her most consequential --- and personal --- mystery yet. Molly has a bad feeling about things, and she starts to wonder: Has she yet again mistaken a frog for a prince?

With her flair for cleaning and proper etiquette, Molly Gray has risen through the ranks of the glorious five-star Regency Grand Hotel to become the esteemed Head Maid. But just as her life reaches a pinnacle state of perfection, her world is turned upside down when J. D. Grimthorpe, the world-renowned mystery author, drops dead on the hotel’s tearoom floor. When Detective Stark, Molly’s old foe, investigates the author’s unexpected demise, it becomes clear that this death was murder most foul. Suspects abound, and everyone wants to know: Who killed J. D. Grimthorpe? As the high-profile death threatens the hotel’s pristine reputation, Molly knows that she alone holds the key to unlocking the killer’s identity. But that key is buried deep in her past, as long ago she knew J. D. Grimthorpe.

Molly Gray is not like everyone else. She struggles with social skills and misreads the intentions of others. Her gran used to interpret the world for her, codifying it into simple rules that Molly could live by. Since Gran died a few months ago, 25-year-old Molly has been navigating life's complexities all by herself. No matter --- she throws herself with gusto into her work as a hotel maid. But her orderly life is upended the day she enters the suite of the infamous and wealthy Charles Black, only to find it in a state of disarray and Mr. Black dead in his bed. Before she knows what's happening, Molly's unusual demeanor has the police targeting her as their lead suspect. She quickly finds herself caught in a web of deception, one she has no idea how to untangle.