The murderer, upon being found out, kills Reyes. From that moment on, he faces the difficulty of getting rid of the body in an island like El Hierro, where it is difficult to vanish without trace.
Reyes hasn't been found, but the search operation leads to tracing down a sunk boat which will provide new clues. The boat was used for smuggling African diamonds, and was found by Fran in a diving excursion.
Díaz avoids being arrested by desperately fleeing. But leaving the island without being found out is impossible, especially with a police operation that shut up firmly the few available exit routes from the island.
Candela must decide if Díaz is kept in pretrial custody. Against the criterium of her team, and of the whole island, he is released on bail, although he won't be allowed to leave the island and he will be closely monitored.
The investigation brings to light the dark side of Fran's life: he had established contact with some mysterious person in Holland, and he had an affair with an unknown lover.
Candela, an unconventional judge with character, is sent to the remotest possible posting, El Hierro, an island that is full of peculiar characteristics, where she doesn't quite fit in. As soon as she arrives, she must face a murder case.