In the square of the Cuban capital, the giant-sized silhouette of Che Guevara presides over the place of the great gatherings of the revolution. A tribute from Fidel to his faithful friend, his uncomfortable comrade. This documentary immerses itself in an investigation of almost 30 years led by Norberto Forgione who, with hundreds of visual and graphic archives, letters, diaries, declassified documents, interviews and unpublished audios, seeks to expose the chiaroscuro of Guevara’s last years, from his departure from Cuba to his assassination in La Higuera.