It’s peak wedding season in Bath, and there’s a race against time for McDonald and Dodds when a spate of suspicious deaths affects ceremonies across the city. A Bath wedding ends in tragedy when the vicar is found murdered in the vestry. McDonald’s suspicions focus on bride Lotty, her father and her sisters, all of whom had a close relationship with vicar Mitchell Morrison. McDonald and Dodds must delve deep into the family's secrets if they hope to discover the truth of what happened to Mitchell.