 Streusler wants his daughter Nelly to finish school and study at the university, but she has difficulties learning (Latin and Maths). He uses every possible way of bringing home people to help her, using his famous Streuselkuchen as bait. In the meantime, a new tenant arrives: a chimney-cleaner, opening a new office in the same house where the bakery is. Streusler protests, he sees black dirt in his tarts and flying around everywhere. Meanwhile, Nelly gets to know the chimney-cleaner in private...