Luis tries to get used to his new life in Tenerife, although it is very difficult for him. He reconnects with Jimena, a daughter he barely knows anymore; he gets used to the heat, the slowness of the Canaries, and the impossible bus schedules; and he tries to find some stimulating police case between robberies of tourists and assaults in beach bars. Secretly, Luis is trying to take advantage of his stay on the island to follow a lead in an old case about organized crime that will allow him to be readmitted to Madrid…

But everything changes when a corpse appears floating in the pond of an aquarium, in front of an Imserso excursion. What is initially established as a work accident, soon shows signs of homicide. And one of the members of that aquarium must be the murderer.