After threatening his ex-partner for years, Marcos M. murders his 11-year-old son with a shovel. A year later a popular jury condemns him for murder, to kill making full use of his faculties, and determines that the crime against the child did not seek anything other than to punish the mother. In the fact on which we base ourselves, violence, harassment, the murder of a child to harm the mother and the death threat that still hangs over the woman concur.

This new adventure of the brothers-in-law begins with the appearance of a corpse right in the middle of the Tui international bridge. This fact comes from what happened a few days ago... Carnival arrives and the Ribeiro family prepares to enjoy the favorite festivities of every good person from Ourense. Two years have passed since the arrest of Alicia Zamora and her Portuguese partner. The brothers-in-law have set up an octopus stand in Ourense, the perfect way to launder the riot money that fell to them from the sky (literally). Between one thing and another, Modesto has become another brother-in-law in the family. The appearance in Ourense of Andreia Nunes (the partner of the detained Portuguese) in search of revenge will complicate things for the brothers-in-law, getting them into a new mess that will turn this Carnival into a real masked ball.

In the near future, the Government aims to replace judges with Artificial Intelligence software, pledging to effectively automate and depoliticize the justice system. Carmen Costa, a distinguished judge, has been invited to assess this new procedure. However, when the software’s creator is found dead, she realizes her life is in danger and that she will have to fight the powerful interests that are at play in the highest echelons of the State.