He previously spent 12 years as a Police Detective and now has his own Private Eye agency solving mostly "routine" cases like marital infidelities.
Along with him works his employee and "jack-of-all-trades" Cárdenas, (nicknamed "El Moro"), a chatty and funny man and former car thief, once arrested and after that freed by Germán while he was in the Police.
Just after she recovered from the abortion, she run away from home and Nico lost her trail, until half a year later he got word she was in Madrid working in Las Gatitas, a high-end nightclub, as an escort (a barely-legal cover for prostitution).
He learns that she left and enrolled in a private VIP escort pool whose head is Mimí de Torres, the "Madame" of a luxury brothel in the dark but a lady with an impeccable social face up front, and wealthy and powerful customers who have become friends.
His former police superior, with whom he still deals now and then as part of his detective job, informally meets him and tells him that "someone from a high spot" is taking an interest in his investigation, and suggests him to stop it at once since Mimí de Torres has powerful friends in politics, financial areas, etc.
Then his former police colleague Alberto "El Guapo", an impeccably-dressed young man now also working free-lance in the Security private sector for some wealthy clients, meets him and after discussing German's confrontation with Mimí de Torres, offers him to join his security group with an excellent wage, with the unspoken condition that he stops the Medina investigation immediately.
Although badly, the case seems over for Germán, until while going to the movies with Carmen the next evening he stops looking at a film publicity still in the hall of the Cine Capitol, one of Madrid's most famous cinemas.
Someone of high finance areas are involved in the girl's missing case, and as a warning to the detective, a bomb in his car kills Maite.
In the airport before returning home, Germán calls Alberto, who is waiting in his hotel room as they had planned before, to tell him that he doesn't really have a bomb attached to his body.