A professor of semiotics who doubles as a psychologist in Barcelona visits (always in disguise) a prostitute in the early hours of the morning on Mondays and Thursdays in order to analyze her without her knowing it. The story moves from Barcelona to Mexico to Buenos Aires, but above all it is about Argentina: its recent history, its 30,000 missing children, its stunned middle class, its writers in exile.

He Who Searches is multifaceted in structure, combining narrative references to old-fashioned storytelling, realism, psychoanalysis, feminism, politics, and suspense, all of them tinged with a patina of eroticism that reflects a feminist perspective. Ultimately the disguises of the plot—transvestism, transsexualism, differing sexual points of view—become pieces in a puzzle that can be taken apart to create other figures, other puzzles. It ends with its narrator back in Buenos Aires: "He returns to his Latin America, and for the first time, recognizes it." He who searches, finds.