hen the subject is torture, opera fans like me think of Puccini’s Tosca, in which the hero, Cavaradossi, is tortured for refusing to reveal the hiding place of a colleague. Nearby is Tosca, Cavaradossi’s lover, who is horrified by Cavaradossi’s screams of agony and divulges the secret he is trying to keep. Things get worse. […]

