Los siete locos is a novel of Argentine writer Roberto Arlt published in October 1929 . In the same some of the problems posed by the philosophical existentialism develop. Moral issues, loneliness, anxiety about the meaninglessness of life and the desolation of death are recurring themes in metaphysics architecture of its protagonists. It is a lucid work of social criticism of Argentina in the years 30 . Los siete locos culminates with Flamethrowers , novel Arlt would publish in 1931 .