Set in 1940 in Huelva against the backdrop of World War II, 25-year-old Lucía, engaged to local politician Francisco and hired to work as a secretary for a British mining corporation, sees herself caught in the middle of a spy plot upon becoming acquainted with mysterious Englishman Peter.[1][2][3]
The series was produced by RTVE alongside Onza and Emociona Media.[5] Filming took place from May to August 2023.[5] Shooting locations included Huelva, Seville, and Jerez.[6]