Carlos, a university professor, is admired and praised above all by people who see in him the ideal person to fill the best positions.

Lina, who works as a servant, is saving money with his boyfriend Daniel, who is fireman, in order to get married. But the weddings' day, when his fiance is goint to the wedding, he recieves an urgent call because of a big fire in the forest. So he decides to go to the fire and leaves his fiancee at the church. Lina feels that Daniel prefer the fire than her so he goes to her town hitchhiking. Carlos, who has just robbed a bank, picks her.

The film follows the adventures of several couples in Spain in the early 70s, whose stories intermingle: Luis is an unfaithful husband to his wife Juana, Felipe is a plumber who seeks extra-spousal adventures to hidden from his wife, Rosario, who works as an assistant. Ramón is a pathological jealous whose obsession is that his girlfriend Charity confess the hypothetical adventures he had with other men before meeting him, Irene is a jealous wife of her husband, Carlos, whose professional life gives him numerous opportunities for infidelity, Domin he is a pimp who frequents the brothels of Madrid .

A young police officer fresh out of the academy, sees casually as a man is beaten and forcibly put into a car in the car park at Barajas airport. The rookie cop tracks them down and discovers a band dedicated to trafficking in women in Spain.

Lucas, shy and repressed, and sanctimonious Enriqueta are parents of nine children, so he decide to convince her to take the contraceptive pill.

Female aliens (in bikinis!) arrive from the galaxy Epsilon Eridani and establish a laboratory in an old Spanish castle in order to make zombie robots from human corpses to do their evil bidding.