Un asunto privado is een Spaanse dramedyserie van de zender Prime Video. De serie ging in première op 23 september 2022.
Marina Quiroga, een gedurfd meisje uit de hogere klasse met de ziel van een detective, gaat op zoek naar de seriemoordenaar die haar stad terroriseert met de hulp van haar trouwe butler Hector.
Marina discovers the killer's mask in Pablo's car and confronts him. During the struggle they end up crashing into a tree. Two days later she wakes to discover Pablo by her side, trying to reassure her that he is innocent. With the mask in their possession they figure out that only one person could have made it. But the man lives in the Cies and to reach him they'll need Castaño's help.