Monica Noble and her husband Graham, the local vicar, are invited to participate in a high-flying church conference being held at a swanky manor house hotel in their village. At the Saturday night dinner, the ambitious female cleric Celia Gordon tragically dies, seemingly of a peanut allergy. But when Chief Superintendent Jason Dury arrives on the scene he quickly discovers that it's a cse of murder, and monica's husband is the prime suspect.