Cranky but lovable sleuth Agatha Raisin's detective agency has become so successful that she wants nothing more than to take quality time for rest and relaxation. But as soon as she begins closing the agency on weekends, she remembers that when she has plenty of quality time, she doesn't know what to do with it. So it doesn't take much for the vicar of a nearby village to persuade her to help publicize the church fete---especially when the fair's organizer, George Selby, turns out to be a gorgeous widower.

Agatha brings out the crowds for the fete, all right, but there's more going on than innocent village fun. Several of the offerings in the jam-tasting booth turn out to be poisoned, and the festive family event becomes the scene of two murders.

Along with her young and (much to her dismay) pretty sidekick, Toni, Agatha must uncover the truth behind the jam tampering, keep the church funds safe from theft, and expose the nasty secrets lurking in the village---all while falling for handsome George, who may have secrets of his own.