sentences:  The characters travel throughout the city, from the slums to the more central spaces of the city.There is not a frontier to limit their wandering within the city, bringing behind them violence.Medellín has been a recurrent setting for different works of literature and studies in Colombia since the beginning of its industrial revolution at the end of the 19th century with authors like Tomás Carrasquilla, León de Greiff, Fernando González, León de Greiff and Porfirio Barba Jacob, to the writers, journalists and film directors of the second half of the 20th century like Gonzalo Arango, Alonso Salazar, Víctor Gaviria and Fernando Vallejo.