May 1967. The internationalist filmmaker Michèle Firk leaves a letter for her friends ‘to be opened in case of. She is 30 years old and joins the urban guerrilla movement in Guatemala, whose members she had met in Havana during the first Tricontinental Conference, a groundbreaking project aimed at forming a united anti-colonialist and anti-imperialist front of the ‘Third World’. Michèle Firk never finished her only film, which she had begun in Cuba. Nor did the Tricontinental Conference, in its own way. Sixty years later, Laura Cazador responds to these absences and to this letter with a film. In the light of current events and of what connects her to Michèle: writing, cinema, the search for the ‘right’ distance. And Cuba… Cuba.