It centers on a young woman named Silvia (Cruz) who becomes pregnant by Jose Luis, the scion of a small but powerful underwear manufacturing empire, and the disastrous fallout of their relationship.

The movie engages in word play and puns, and rhapsodises on the juxtaposition of old and new in Spain, as well as many other emotional contrasts such as erotic desire and food.

[5] In a small Spanish town on the edge of the Monegros Desert, the beautiful teenager Silvia spends her evenings making potato omelets to sell at the factory where she works as a seamstress for the Sansón Corporation, a small but powerful men's underwear company that, along with the local Conquistador ham processing plant, serves as one of the two major local employers.

Unbeknownst to anyone, Silvia has been having an affair with José Luis, the kind but spoiled and immature heir to the Sansón empire.

One day, Silvia tells him that she is pregnant and José Luis impulsively proposes to her with a soda can tab, promising to provide her with a real engagement ring once he has sought his parents' permission for marriage.

His father Manuel bows to his mother's wishes, while also expressing sympathy for Silvia and Carmen, the latter of whom he used to frequent when she was still a prostitute.

After Silvia repels his advances several times, Raúl becomes genuinely attracted to her and begins trying to win her affection in earnest.

[7] Footage was shot near the Osborne bull (and the adjoining gas station) in Peñalba, a football pitch in Monegrillo, and a roadhouse near Candasnos.