The story of two teenagers during a school year. In this movie the goal is to show, not the extroverted and revolutionary side of puberty but the introverted and idealistic one.

Sissy tries to cope despite lots of problems. Her brother Harry asks her for financial support to produce his feature film about the first Greek rocket in space. Harry describes the plot of his film to Sissy so vividly that we also see his film on screen. Sissy's and Harry's stories meet at a certain point and they both help one another to find freedom.