In Spain of 1972 a student couple decides to test the marriage before marrying in reality in order to prevent a irremediable failure. But this was like a revolution for the catholic society of this time.
Charo is a fashion model, in love with enigmatic Adolfo. The fashion house where she works is ruined. In a parade, an English lady confuses her with a countess and invites her to spend some days in Estoril. There, Charo will try to save the company from bankruptcy.
Afther their wedding ceremony, Fernanda and Cosme Martínez go to a luxury hotel to consummate. They receive there some gifts and they find one fabulous diamant bracalet with a note for Fernanda thanking her for unfforgetable nights. Cosme feel jelause and Fernanda offended and during their wedding night they go from one place to another to find out the misunderstanding.
The racing stables of Gandia family go to auction. Tomy, son of the owner, manages to save his favorite horse, "Cantador". Now, his only obsession is to resolve the problems of his father, providing him a new wife and riding his horse at the races. After a while, in the Official Prize, "Cantador", ridden by Tomy wins. This fact causes everyone to be interested in the horse and eventually Tomy will be forced to auction it to liquidate their debts. But the new owner is the father of Luchy, Tomy's classmate , and he will do everything possible to recover it.
Man wants to dump wife for a new girlfriend; all three end up weekending in Acapulco together along with a gentleman the wife meets enroute, and all four explore the possibility of forming new relationships.
