This novel is a dark and gripping exploration of life in Medellín, Colombia, during the height of the drug wars. The protagonist, a middle-aged writer, returns home after many years abroad, only to find his city ravaged by violence and death. He falls in love with two teenage assassins, who guide him through the underworld of the city, exposing him to the brutal realities of life in a place where human life has lost all value. The story is a bleak commentary on the devastating effects of drug trafficking and political corruption on society.

"Los Días Azules" is a reflective and autobiographical narrative that delves into the author's memories of his childhood and youth in Colombia. The book paints a vivid picture of the author's family life, the cultural and social environment of his upbringing, and the formative experiences that shaped his worldview. Through a series of poignant and often critical recollections, the author explores themes of love, loss, and the passage of time, all set against the backdrop of a country marked by political turmoil and societal change. The narrative is characterized by its lyrical prose and introspective tone, offering readers a deeply personal glimpse into the author's past and the moments that have defined his life's journey.