Disturbing. Sensual. Haunting. Mario Vega is seven years old and his life is about to change forever. Across the street in an exclusive suburb of Seville his father lies dead on the kitchen floor and his mother has been suffocated under her own pillow. It appears to be a suicide pact, but Inspector Javier Falcon has his doubts when he finds an enigmatic note crushed in the dead man's hand. In the brutal summer heat Falcon starts to dismantle the obscure life of Rafael Vega, only to receive threats from the Russian mafia. His investigation into Vega's neighbours uncovers an American couple with a destructive past and the misery of a famous actor whose only son is in prison for an appalling crime. Falcon's efforts and finding the truth reveal that everything is connected and that there is one more secret in the black heart of Vega's life.