A millionaire leaves all his fortune to his older granddaughter. But his two granddaughters are twins and nobody knows who's the older one is.

After killing his girl friend, Ana, Amador (a dark and strange man) joins his family (which he can't stand) in Torremolinos, where he gets involved...

The adventures of a group of Spaniards to win the favors of the numerous young foreigners who spend the summer in the city.