[4] The history of the project dates back to June 2012 when the Spanish television channel Telecinco announced that it was preparing a series of actual fiction of stolen children in the 1970s.
However, also had influence on the impact of media production Sor Maria, Spanish nun who jumped to the TV as one of the alleged responsible for the theft of children in maternity clinics in Madrid in the second half of the twentieth century.
Atresmedia Televisión aired during the month of September 2012, while that of Mediaset did a year later, in mid- October 2013, ceded an area of discussion focused on the case of the stolen children with Telecinco reports and real testimonials.
One of them, Violeta, spends her last months of pregnancy in a religious shelter located in Madrid, while the other, Conchita, resides temporarily in an apartment in Bilbao paid by a woman of high society .
As for the chosen scenarios for fiction, direction chose two historic buildings: the old Puerta de Hierro Hospital [es] and the Instituto Cardenal Cisneros [es]; additional images of the exterior include the Railway Museum of Madrid, Almudena Cemetery, the geriatric center La Aurora, and several streets of Bilbao.