“They suddenly found themselves in an impersonal world, where everyday words no longer seemed to mean anything, where the most mundane details were translated into unintelligible formulae. The judges’ black gowns, the ermine, the prosecutor’s red robe further added to the impression of a ceremony set in stone where the individual counted for nothing.”

Maigret receives an anonymous phone call concerning the brutal murder of a woman and young child. The tip off concerns the woman’s nephew, a mild-mannered man by the name of Gaston Meurant. Maigret remains unconvinced of the man’s guilt and at his trial exposes some shocking truths about Meurant’s private life that may prove his innocence.