This tells the tale of Mateo who, nine years ago, interceded in a fight and ended up becoming a murderer.

Two inmates escaped from Lleida Prison in 2001: Manuel Brito and Javier Picatoste. In this fact-based story, they're renamed Juan José Prieto and Mateo Calatrava.

Laura has recently started working in the Barcelona subway. She has been assigned the old and quiet Rocafort station, but it won't be long before she discovers that this stop harbors a legend that will begin to haunt her: many people have died there in strange circumstances over the years and no one seems to be interested in knowing the truth.