Elio, son of fisherman, dreams of living lightly, carefree. But his father would like to see him become a man who takes over the fisherman's trade. So, considering it incapable of doing anything else, he takes Elio with him on cold trawling nights. When the circus arrives in town, Elio discovers a secret world, where it is possible to stay light forever, away from adult life. Does happiness really exist in a world other than the one Elio knows?