The Tunnel (Spanish: El túnel) is a dark, psychological novel written by Argentine writer Ernesto Sabato about a deranged porteño painter, Juan Pablo Castel, and his obsession with a woman. The story's title refers to the symbol for Castel's emotional and physical isolation from society, which becomes increasingly apparent as Castel proceeds to tell from his jail cell the series of events that enabled him to murder the only person capable of understanding him. Marked by its existential themes, El Túnel received enthusiastic support from Albert Camus and Graham Greene following its publication in 1948. Source: Wikipedia (en)