A cop investigates the murder of a beautiful teen girl left naked by a lake.

Nanni Moretti recalls in his diary three slice of life stories characterized by a sharply ironic look: in the first one he wanders through a deserted Rome, in the second he visits a reclusive friend on an island, and in the last he has to grapple with an unknown illness.

Samuele is 16 and has a passion for skateboarding. He has big dreams: going to university, move to California, and travel, but things change when he meets Alice, who could be the girl of his life.