For the first time, Blanca seems to show fear of the darkness: she cannot accept her new guide dog, to the point of not even giving him a name and simply calling him Dog 3. Meanwhile, Liguori, still emotionally tied to Veronica, appears close to making an important choice that could change his life. At the precinct, attention turns to the murder of Valya, a nun from Ukraine connected to the disappearance of a child. The investigation leads Blanca to meet Domenico Falena, a charming and mysterious contractor who works with a maritime security company in Genoa.