The corpse of a young man appears in a forest on the island of La Gomera. The case closes with the accusation to a local politician who is exonerated in the later judgment. Three years later, Sergeant Bevilaqua and his assistant, Corporal Chamorro, are sent to the island to revive the investigation. Corporal Anglada accompanies them, the last one who saw the young man alive.
A group of friends and family reunite at the fancy new holiday home of a woman who is about to turn 40.
During the scorching summer of 2011 in bustling central Madrid and in the background of the imminent Papal visit, the metropolis pulsates with anticipation while thousands of pilgrims flock to the capital. However, in the bowels of the city, there is something sinister going on, as it seems that a string of sex-related homicides have been taking place under the nose of the police, nurturing a scandal that no one wants to break out. Under those circumstances, two investigators, the brilliant, yet eccentric Luis Velarde and the hot-headed loose cannon Javier Alfaro must track down the sadistic and methodical serial killer in total secrecy. But to catch a killer, one must first keep his own demons at bay.