In the summer of 1963, US President Kennedy visits the Berlin Wall and the hit song "Schuld war nur der Bossa Nova" plays from the jukeboxes in the pubs. And on the outskirts of a small town in the Ruhr region, a teenage clique organizes a party. Among them are 17-year-old Heike and her friend Gaby. While Gaby is being hit on by loud-mouthed Charly, Heike has lost her heart to Manni, much to the annoyance of dreamy Little Joe, who secretly has a crush on Heike. When it comes out that Heike is pregnant, a scandal ensues.

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