A quinceañera pretends to fall in love with David, the singer of the popular group Men G, and chases him to Acapulco. One night, she undresses and pounces on him, while a friend of her makes a few compromising photographs. The publication of these photos in a magazine leads David to pay a large sum and one year in prison, but the rest of the group discovers that Sonia and her friend are going to defraud actor Toni Canto and decide to prepare a trap for them
David, Javier, Dani and Pepe are four friends expelled from a religious school who must join the discipline of a mixed center. His passion for music leads them to create the group Los Residuos, facing Rocky Lacoste, the idol of the new school. In addition to singing in the rival group Yellow Fever, Lacoste also conquers Patty, David's girlfriend. At the end of his irregular career, Manuel Summers directed this musical taking advantage of the enormous success among the youthful public of the group of pop Men G, led by his son David.
A child is witness to an assault on a monk by the gang of Lorenzo the Fifth. The monk escapes and takes refuge in the estate of Doña Carlota, a countess who lives with her son Juan and daughter Beatriz. Basilisa, the maid, conjures the devil to free her son from an irreversible illness, but to do so the evil must be transmitted to an innocent soul, and for that she chooses Beatriz. The child begins to be the victim of a possession, for which everyone blames the monk.