It's Tri-County fair time and Lake Eden, Minnesota, is buzzing with more than mosquitoes. Hannah Swensen, owner of The Cookie Jar, is hot on the trail of a killer whose perfect carnival prize would be getting away with murder... It promises to be a busy week for Hannah Swensen. Not only is she whipping up treats for the chamber of commerce booth at the fair; she's also judging the baking contest; acting as a magician's assistant for her business partner's husband; trying to coax Moishe, her previously rapacious feline, to end his hunger strike, and performing her own private carnival act by juggling the demands of her mother and sisters. With so much on her plate, it's no wonder Hannah finds herself on the midway only moments before the fair closes for the night. As the lights click off, she realizes that she's not alone among the shuttered booths and looming carnival attractions. After hearing a suspicious thump, she goes snooping - only to discover Willa Sunquist, a student teacher and fellow bake contest judge, dead alongside an upended key lime pie. But who would want to kill Willa and why? Before long Hannah is sifting through motives and a list of suspects which include a high school student Willa flunked, the hot-blooded brothers of a disqualified beauty contestant, a rodeo cowboy, a baking competitor who failed to win her yearly blue ribbon, and the college professor Willa was dating. As fair week draws to a close, Hannah cranks up the heat, hoping that the killer will get rattled and make a mistake. If that happens she intends to be there, even if it means getting on a carnival ride that could very well be her last...