In need of some quick dough, full-time baker and sometime sleuth Sally Muccio decides to rent the vacant apartment over the bakery to a friend of her grandmother's. Allegra Fiato is nothing like Sal's darling Grandma Rosa, though. She's mean, dishonest, and harboring a deadly secret.
When the elderly woman is mowed down in a hit and run, it quickly becomes obvious this was no accident. Grandma Rosa asks for Sal's help to find the killer which involves a last minute trip to Vegas crashed by Sal's crazy parents, stolen fortune cookies, and a mysterious missinglocket.