Holiday business is booming at Hannah Swenson's Cookie Jar pastry shop, but the mysterious murder of "Lunatic Larry" Jaeger puts a serious crimp in the season of good cheer. From the looks of it, Larry had as many enemies as Hannah's sugar cookies have sprinkles. With the 12 days of Christmas ticking down and cookie orders piling up, tracking down the killer won't be easy. A clever whodunit with pastry recipe dividends.