The Fourth of July is coming, and for professional food lover Samantha Barnes, it's all about the picnic. Okay, and the fireworks. And the parade. But mostly the picnic. What could be better than a DIY clambake followed by the best blueberry buckle in the world? Sam has finally found the perfect recipe in the kitchen of Clara Foster, famed cookbook author and retired restaurateur, and she's thrilled when Clara agrees to a buckle baking lesson.

But when Clara dies in a house fire blamed on carelessness in the kitchen, Sam doesn't believe it. Unfortunately, her doubts set in motion an investigation pointing to the new owner of Clara's legendary restaurant--and a cousin of Sam's harbormaster boyfriend. So, in between researching the Cape's best lobster rolls and planning her clambake, Sam needs to find Clara's killer before the fireworks really start....