Life may not be easy. It certainly isn’t for Delfín, an 11-year-old boy who lives alone with his father in the barren, muddy outskirts of a Buenos Aires province small town. Over a week, Delfín wakes up early every morning to go to work, falls asleep in class, goes fishing frogs with friends, spies on a young teacher for whom he feels a fascination that can hardly understand, and in the absence of his dad faces again and again the collector who threatens an imminent eviction. But above all things, Delfín wants to participate in a Children’s Orchestra that is being formed in a neighboring village. His ageing music teacher taught him to play the French horn, and Delfín will do the impossible to show up for the audition. This will mean an adventure for him and also for his father. The story takes place from Monday at five thirty in the morning, when Delfín gets up to do the deliveries of a bakery, until Sunday afternoon, when he and his father make an important decision in an attempt to change the course of their lives.