Barcelona at the start of the twentieth century was divided into classes: the bourgeois and modernist, while the other filthy and sordid. When Teresa Guitart, the daughter of a rich family, goes missing, the news sends shockwaves through the whole country.

The police soon have a suspect: Enriqueta Marti, a woman who is known as “The Barcelona Vampiress”.

The journalist Sebastia Comas decides to venture into the Raval neighborhood’s, where he will find the dark truth on the kidnappings and macabre murders of children that the Vampiress is accused of.