A viceroy and an archbishop take their posts in Mexico. A local nun, Sor Juana Inés de la Cruz (1651-1695), intrigues them. The viceroy and his wife find her brilliant and fascinating. The prelate finds her a symbol of European laxity. He engineers the election of a new abbess, severe and ascetic. The virreina visits Sor Juana often and inspires her to write passionate poetry that the archbishop finds scandalous. The viceroy protects her. After he is replaced and returns to Spain with his wife, Sor Juana faces envy and retribution. A bishop betrays her, her confessor humbles her. Plague, a tribunal, and her confession as "the worst of all" end the great poet's life.
Luis is a righteous man who begins a struggle and a moral debate with his family, neighbors and close friends when a corrupt municipal official offers a very convenient "arrangement".
Catrasca (Jorge Porcel) is a man who works in a restaurant and in his spare time helps in a children's home. His problem is that he carries a family tradition that makes him cause catastrophes in his path, one of which takes his boss (Adolfo García Grau) to the hospital.
Upon leaving the hospital, Catrasca is run over by Graciela (Graciela Alfano), the daughter of Professor Galíndez (Osvaldo Terranova). This is how he meets this professor, who has a formula that says he will be the salvation of humanity, so he is the object of persecutions by villains such as Dr. Linda Winters (Moria Casán).
When they are killed by the leaders of the two gangs fighting for control of the underground game, the conductor who is the heir of one of them turns his musicians into gangsters.
Shortly before a match against River Plate, members of the Boca Juniors football team are kidnapped.
After filming the hippie professor Luis Sandrini filmed this sequel to the above, following the sanctions imposed on it by Professor Horacio Montesano, sending him to Patagonia to a secondary school. Among the supporting cast is the famous singer Piero (he even play many of their good songs).