When an informer is executed, his dismembered remains found in several bin bags, Fred, a resilient police inspector, leads the murder investigation with his customary dogged determination.
Father Birotteau and Father Troubert, both of whom are priests at Tours, have separate lodgings in the house belonging to the crabby spinster Sophie Gamard in that city. Birotteau is an other-worldly, gentle, introspective type; Troubert, who is ten years younger than his fellow boarder, is very much of the world: he is a careerist devoured by ambition.