"[2] Begoña is a thirty-something consultant who has rebelled against her upper-middle-class background and has overdone it with sex ever since her youth.

On Christmas Eve, reluctantly, Begoña goes to have dinner with her dysfunctional family: her stern mother, her married brother and her younger sister.

The same night in a bar, Begoña is befriended by Daniel, a solitary handsome man in his late teens.

Young, rich and without any real occupation, Daniel starts to pursue Begoña relentlessly, but, although she is flattered, she ignores him.

At the party, there is also Marian, Begoña's friend, who is married to a much younger man, but is having trouble getting pregnant.

On her request, Begoña helps Marian to collect from her husband the sperm she needs for an artificial insemination.

Begoña's spirit of adventure makes her accept the challenge of Elio, her friend and sometimes lover, to go into a rough section of Madrid pretending to be a prostitute.