Joaquín Prat

Sister Angela and Sister Mary park his van in front of a bank branch. They enter the bank and with the weapons hidden under their habits, commit the robbery of the century, to the astonishment of all employees and customers. After thorough police investigation the two nuns are arrested, but then appears Trini, twin sister of one of them and now all is not so clear. Were the nuns who committed the robbery?

Hipólito, a factory janitor whose workers are on strike, is choosen as spokesperson for your workers' complaints to the principal. He, who is not willing to budge, decides to earn the concierge, naming his personal secretary.

Karina arrives to a mansion to work as a governess of a group of singing children. She must take care of their education, and she decides to use music to teach them. Meanwhile, the record company where the children work is busy with another project. Their biggest star, Marta, is getting ready a song to represent Spain in the Eurovision Song Contest 1971. Carlos, the composer of the song, titled "En un mundo nuevo" ("In a new world") meets Karina in the mansion and starts feeling affection to the girl, something Marta, who is Carlos' girlfriend doesn't like at all. She is also jealous of Karina for her musical abilities, and when one day Marta catches Karina with Carlos singing a song composed for the governess, she gives him an ultimatum, if Karina doesn't leave the mansion at once, she will break her contract with the record company and won't sing "En un mundo nuevo" in the Eurovision Song Contest...