
professor Macháček collapses while teaching math and is replaced by a new young teacher Ludolf. The girls in his class don’t like him; their attempts to get rid of him fail until one girl comes up with the idea to lie to the teacher; she tells him that something happened between them when he returned drunk one night from a party. Ludolf is now absolutely terrified, but he's still unwilling to give the girls what they want – good marks for free. Instead, he decides to teach mathematics through music – and succeeds! He's then mobbed by the girls, becomes a star and is swarmed by reporters.