After accepting his friend Edurne’s request, and encouraged by his girlfriend Natalia, Caronte leaves Gijón for a while to take on Javier Sáez’s defence in Madrid. The lawyer returns to his family home in the traditional Manzanares neighbourhood. Once there, he is confronted with his old life, and his son Guillermo, who he hasn’t seen for 10 years.

Marta manages to release Caronte after convincing judge Araúz that he was simply acting in his sister’s defence, although the lawyer now faces a suspension. Meanwhile, at the courthouse, Marta discovers that Cleo Torres, accused of assisting her sister who was suffering from a degenerative illness to commit suicide, has been left without a lawyer in the middle of her trial.

Following the controversial Adeyemi case, Marta and Caronte defend some of the former’s acquaintances, Adela and Rosa, a mother and daughter accused of hiding a body in the wall of their nursery. The investigation will reveal dark secrets which even Adela herself was unaware of. After Natalia’s tragic loss, she decides to return home to Gijón to distance herself from all that’s happened.

The split with Natalia leaves Caronte at a low point. He wants to give free reign to his emotions and take revenge on Paniagua, but Aurelio stops him in time. In court, Caronte and Marta tackle a controversial case in which Ana, a poor girl, has accused a group of boys from well-off families of rape.

With Caronte fully focused on unmasking Paniagua, Marta is alone working on a case very close to home. Her ex-boyfriend Mario could end up in jail for assaulting a co-worker under the influence of drugs. At the same time, Guillermo organises a big party at Caronte’s house where a mysterious man takes Caronte’s gun.