These days, the streets of Vienna were especially noisy, cheerful, and festive. Young people from different countries came here to hold their traditional festival. New acquaintances, unexpected meetings, heated arguments... There was a heated discussion in the club. Peter, the envoy from Germany, expressed his point of view. The audience was indignant, the audience was indignant. But Peter saw only the Soviet girl Katya, he listened only to her words, angry, resolute, condemning his position.