Adapted from the novel by Juan Marse, the film shows two distant worlds in the Spain of the 50's, the suburban and the bourgeois, which are related through two characters, Manolo Reyes, vulgar motorcycle thief who aspires to escape poverty and Teresa Serrat, university student of bourgeois extraction seduced by the revolutionary cause.

In a small Catalan village take advantage of the visit of an ecclesiastical authority of Rome, during vacations, to organize a conference on the topic of religion and sex. This causes the people to divide into two camps, those who favor and those against the "Congress", until finally after a series of negotiations between both sides, we arrive at consensus. A large mosaic of characters carry the story to end happily, through critical situations with the conservative church.

A divorcing couple remembers the best years of their lives.