The whole story takes place in Madrid, Spain and New York City in December 1980. Germán Areta is a 43-year-old private detective in Madrid. He previously spent 12 years as a Police Detective and now has his own Private Eye agency solving mostly "routine" cases like marital infidelities, working absences, minor celebrity-related information and other matters. Along with him works his employee and "jack-of-all-trades" Cárdenas, (nicknamed El Moro), a chatty and funny man and former car thief, once arrested and after that freed by Germán while he was in the Police. Moro is German's main connection with the underworld and night life.