Raúl has invented something that can change the destiny of humanity: a whistle whose sound arouses irrepressible sexual desire. The deluded inventor thought of avoiding wars with the blow of his dick, but his friend Manuel, a real cheek, will not deprive himself of using the invention to arouse as many women as possible. Not even Lucrecia, Raúl's naive fiancée, will be able to resist the magic whistle.

Rita and Dalia live by selling themselves. Dalia is in love with Mónica, who is a friend of Chumi, who is married to Pedro, a pimp: a relationship mess that ends with the attempt to open a gay bar.

A man is a famous sexologist and in his office, helped by a wonderful black nurse, he attends to his clientele.