Benjamin is an old bachelor who lives with his sister. One day he falls in love with the young Natividad. Seeing that the love letter strategy doesn't work with the girl, Benjamín decides to kidnap her.

Inheriting the mansion of a forgotten aunt, José Luis, a simple apothecary leaves the countryside for the capital. When he arrives, he discovers that it is a brothel, inhabited by a bunch of beautiful girls.

Adaptation of a Spanish operetta about a love triangle between two fisherman and a human female.