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.

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).

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".

Shortly before a match against River Plate, members of the Boca Juniors football team are kidnapped.

A 17th-century Mexican nun defies expectations by becoming a renowned intellectual and writer during the Spanish Inquisition.

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).