A summer in the 1960s: while mother toils and grandma drinks, eleven-year-old Lisa (Ana Xandry) and little Willy spend their holidays in Zurich's dreary workers' quarter. They'd rather be with Uncle Franz, who goes to the sea, than here. And instead of just being the big sister, Lisa would like to grow up now. Her feelings towards Antonio, a young Italian, and a visit of Uncle Franz will change her life .