The story of how a Uruguayan political prisoner, Jorge Tiscornia, kept a meticulous, personal record of the conditions of daily life in the prison called Libertad from 1972 onward, an almanac which he managed to keep hidden from the authorities for all of the 4646 days he spent in prison – over 12 years. During the 70s, Libertad was Latin America’s largest prison for political prisoners.

Most of the prisoners spent 23 hours a day locked in their cells. The story of these days – all pretty much the same – gradually became blurred. But thanks to his diary, Tiscornia had a register of everything that happened to him and the men around him. His perseverance in keeping this record up for over 12 years was as important as being able to hid it from the prison guards. It was a secret record and had to be hidden if it were to survive. But how could this be achieved in a place under permanent surveillance?

Looking back, Tiscornia today relives the solitary actions of the man he was when he was “inside” and remembers the huge effort involved in noting down all the details of the way the prisoners’ existence evolved over the years. An effort that has meant that these years will never be forgotten.