Mauricio (16), a Costa Rican student, and Elías (45), the janitor, form an alliance to sell an experimental drug "Cachiflín" in the form of a suppository at school. Mauricio creates an empire and becomes the most popular young man in school thanks to the success of the business with the help of Alexa (16) against the wishes of her boyfriend Esteban (16). Success increases the fortunes of Mauricio, who, together with Aleza, betrays his best friend Esteban. So much success leads to the end of Cachiflin, and Mauricion, Alexa and Elías decide to create Cachifake, but this attempt has negative results on the students, creating chaos that captures the attention of director Amparo. Alexa is not harmed, but Mauricio is expelled and Elías is removed from his job.