Late '50s to early '60s, when the space war between the Soviet and US was fiercely going on, a fifteen-year-old member of the communist party, Luciana, develops her ideals while living with her bourgeois stepfather, and among male chauvinists in a communist group in Rome. Her only friend is her brother Arturo, who dreams of going to space but is unable to do so due to his epilepsy.