Pep, a 13-year-old boy, is completely in love with Sara Amat, a girl from her grandparents' village. One summer night, Sara disappears, but Pep later finds her hidden in his own room. That's when the young woman explains that she has run away from home and asks to stay for a few days. Although Pep knows that the whole town is looking for her, he becomes her protector. Consequently, the boy is forced to live a double life: he must lie to everyone while satisfying Sara's demands, which puts him to the test and makes him mature before the summer's end.