The series "Inspector Gerri" (Italian title: "Gerri") is filmed entirely in the region of Puglia, Italy. Specific filming locations include several towns and cities in Puglia such as Andria (near the ducal palace and in the underground cistern), Trani (especially the harbor area), Barletta (on the "Pietro Mennea" Lungomare di Ponente), Molfetta (Madonna dei Martiri Convent), Bisceglie (historic center and port, and other nearby areas), and Minervino Murge (historic center). These locations are all situated north of Bari, in the province of Barletta-Andria-Trani. The filming took place from March to June 2023.