A couple of unprincipled outsiders have bought an old farm at the edge of the Mennonite community of Hernia, Pennsylvania. They say they want to grow fruit, but their real plan is to start a vineyard and open a winery. This scheme is a serious affront to the teetotalling Mennonites, so everyone's a suspect when the manager of the vineyard is found entombed in cement. A new and inexperienced police chief can't solve the crime alone, and soon Magdalena Yoder finds herself on the case-risking her neck with her ear to the grapevine.