The Fourth of July means cookouts and celebrations. While selling cheesecake tortes at the fireworks--despite the fact that Holly's nemesis, Millicent Monroe, steals the show with over-the-top gimmicks--Holly rescues a napping lady from the fireworks. Except Agatha Poppleton wasn't napping--she's dead. With the help of her friends, and her dog, Muffins, Holly sneaks in some sweet revenge while chasing down clues. She realizes it might have been a mistake to hide her plans from the handsome Officer Trinket when she comes face to face with the killer.