Inspector Pieldelobo is still in the spotlight of her superiors at the Pamplona police station following irregularities in the resolution of a case of triple murder involving a powerful Opus Dei family.
A National Police operative against drug trafficking as infiltrating agents complicates when the young Elur Amézaga appears murdered in Bera, a small town in Navarre very close to France. Elur is a confidant of the police and bride of a prominent local Abertzale leader, and everything points to the fact that the culprit of his death is Inspector Fernando Ribas, Marcela’s friend (as well as Marcela’s mistress and mentor when she entered the Corps more than ten years ago), but Marcela resists believing that Ribas, despite all his defects, was also a corrupt policeman.
Prompted to clarify what happened, inspector Pieldelobo ignores both anonymous blackmail and the indications of police forces, who insist on resolving this case as soon as possible, and the threats of the abertzale environment, which does not want verse involved in a drug-related case. Once again, she will follow her instinct and launch a dangerous time trial that will endanger her life in the mushroom lands between France and Navarre.