 This movie portrays the drug scene in Berlin in the 70s, following tape recordings of Christiane F. 14 years old Christiane lives with her mother and little sister in a typical multi-storey apartment building in Berlin. She s fascinated by the  Sound , a new disco with most modern equipment. Although she s legally too young, she asks a friend to take her. There she meets Detlef, who s in a clique where everybody s on drugs. Step by step she gets drawn deeper into the scene.