Over the last sixty years, an elderly artist has been working on a monumental collection of stones: La Ricerca. Exploring the Adige river and the Lessinia mountains, Luigi Lineri has collected and catalogued countless pebbles with human and animal shapes, reminiscent of mysterious prehistoric sculptures. Stones thus become the instrument to research the deepest human nature, amid primordial memories and omens for the future. Evoking mythological images, his artwork pays homage to the struggles of men and women who lived through the infancy of our species, allowing us to become what we are. A collective existential investigation, a journey through time, across symbols, art, ecology and technological progress. Combining the languages of documentary and experimental cinema, La Ricerca is a visionary tale that offers an unprecedented perspective on the human journey and a manifesto of hope for our future.