One twin alive, the other dead. Which sits tied to a chair before Martin? With Elsa demanding his immediate arrest, Martin must decide correctly and quickly. Lives depend on it. Marcos struggles to obey his father's directive: get Paula away from the boarding school. Julia's reluctance to follow Eva down the tunnels irks the powerful ghost with alarmingly chilly displeasure. Camilo attacks Tomás' dwelling to call out Jacques for a showdown. Elsa's demand for justice (threatening to expose Alicia if not met) forces Jacinta to discuss her late father's true nature. Having avoided a pandemic and hearing of a permanent cure through Maria's encounter with Hugo, Fermin and Rebeca brave the tunnels, where more homeless men and, potentially, the antidote await. In a struggle for possession over Lucas' birthday present, the kids are wholly unaware they're playing with fire.
—statmanjeff