If twelve-year-old Karl had been able to decide whom to fall in love with, he would not have chosen Lea, a much taller student in his class. Now, he doesn’t have much time to find out whether Lea can reciprocate his feelings. After the summer holidays, she will change schools. Karl has one last chance to become Lea’s boyfriend on the upcoming school trip. During this project week, the class shoots a film titled “In Love.” Suddenly, it becomes clear that Karl is not the only one with his problem.