Jesús escapes from the seminary and decides to live independently. Through an advertisement in the newspaper, he learns that people are taken to form a pop band. After numerous examinations, he is disqualified along with three other boys. But Alicia, an enterprising girl who watches the exams, decides to form a musical group with all of them. After finding the wigs, dresses and instruments that will accompany them in their new artistic career, they are locked in the house of the grandmother of Jesús to compose and rehearse. The musical (and loving) uproar is assured.