Konečně si rozumíme (1977)

After a few months at the spa, 14-year-old Pavel discovers that his love, his classmate Zuzana, has outgrown him. In addition, she has found a new boy classmate, who is nicknamed Eifelák because of his height. This is a big shock for Pavel and like a proper teenager he is very worried, he invents blood feuds which usually turn against him, in short he is completely distraught. His problems and suffering are understood more by his grandfather than by his busy parents. But the right patch for the wound is found in the form of another girl whom Pavel meets by chance and who is very special...