Dom Casmurro

Bento Santiago is madly in love with his neighbour, Capitu. He even breaks a promise his devout mother made to God that he become a priest in order to marry her. But, once wed, Bento becomes increasingly convinced that Capitu is having a torrid affair, that his son is not his own, and that his best friend has cuckolded him. What follows is a rich and sardonic narrative, as Bento attempts to discern his son's paternity. Are his suspicions actually based in reality or have his obsessive ruminations given way to deceptive illusions?