"Ossi di Seppia" is a story designed to retrace the events of the most recent Italian history. From the 1976 Seveso disaster to the collapse of the Morandi Bridge, passing through the assassination of Giulio Regeni and the resignation of Pope Benedict XVI, the unthinkable events that have marked the course of history and our way of looking at the world are reread in the light of new clues and precious details to allow us to understand more clearly and consciously the current present marked by the pandemic. The memory of yesterday is thus recovered through the images of the Rai Teche and the archive photographs and its threads re-knotted and reconnected to today thanks to the heartfelt story of exceptional witnesses, protagonists at the time of the facts.