Almost all the students of the secondary school at Igló are in love with Évike, daughter of professor Tirtsák. Petky Pali, the wild, rollicking son to the mayor is dreaming about her, too. One of his competitors, Szidor Ákos, denounces him to their teachers. The mayor is also informed about his son's doings, and his personal experiences substantiate the rumours. Yet he was not the better of it in his learning years at Igló! Pali is sacked, and Szidor is reprimanded for his intriguing. The world war breaks out. Pali, as well as his fellow students, goes to the front. Évi continues to wait for him faithfully, and the returning Pali, now an officer, asks her to marry him at the party for the one-time students of Igló.