Reflecting on old memories and regrets, Maigret recalls a case whose verdict he questions to this day and wonders if he is responsible for the execution of an innocent man. One evening, at a dinner party, Maigret does something unusual: he opens up about his regrets. Recalling a case long thought to be settled but the verdict of which he always doubted, Maigret wonders if he is responsible for the trial and execution of an innocent man. Confronted with the impossibility of ever truly knowing what another person is capable of, Maigret goes so far as to doubt whether joining the police was the right choice for him. Maigret's Secret is a ruminative and penetrating study of social class, guilt and innocence, and human psychology.