Antonio Rabinad

Gim, an attractive advertising model, decides to face her destiny and confront a mysterious serial killer who relentlessly pursues the most beautiful women in a disturbingly empty city.

At the outbreak of the Spanish Civil War, the nun Maria is forced to flee her convent. She takes refuge in a brothel, until it is liberated by a woman's anarchist group. Maria joins the group and eventually goes to the front. The women's group faces the problems of fighting not only the nationalists, but also factions on the left seeking to impose a more traditional military structure.

Pedro Martín, a young and ambitious doctor, is studying the effect of cancerous cells on mice, but he has run out of mice in his laboratory, since they do not breed there, and he has no funds to purchase more of these expensive laboratory animals from the United States. Nevertheless, his assistant, Amador, informs him that he gave some of the mice to an old trapper, nicknamed “el Muecas”, who lives in precarious conditions in a shanty town outside Madrid, and that this poor man has successfully bred them with the help of the natural heat of his daughters. The incredulous scientist goes to the shanty town to obtain the mice. There, Pedro meets Muecas, Muecas's wife Ricarda and their two daughters Florita and Conchi. With the warmth of the women’s breasts, as the flirtatious Florita shows Pedro, the mice are able to reproduce.

A publisher of novels begins to receive packets containing macabre: members of a female corpse. The appearance of a mysterious woman who seems related packages will lead to a situation of dramatic denouement.