Understanding who you are is complicated enough in everyday life. How difficult must it be to find your identity when you slip into the body of your rebellious daughter as a mother and into the skin of your mother as a 16-year-old? This is exactly what happens to teacher Susanne and her daughter Isabelle. Suddenly, everything turns upside down: punk Isabelle frustrates her boyfriend Basti and her friends with her well-behaved, bourgeois nerdiness. And she no longer wants to be with her divorced father Georg. On the other hand, teacher Susanne surprises them with her new pedagogy and unusual laid-back attitude...