In "Mariachi Shelly's Frankenstein," a tropical storm sets the stage for drama as Will Trent and the Georgia Bureau of Investigation (GBI) team up with the Atlanta Police Department (APD) to exonerate an innocent man caught in a web of deceit.

As the storm intensifies, so do the revelations, with the investigation uncovering shocking secrets that hint the killer might be someone they know. Amidst the chaos, Will's unique investigative skills are put to the test, balancing the urgency of the case with the personal dynamics of his team, all while racing against time.