A dead woman's butterfly tattoo leads Montalbano to a religious charity that purports to aid Eastern European women escaping from prostitution. Luca Zingaretti, Cesare Bocci, Peppino Mazzotta, Isabell Sollman, Angelo Russo, Roberto Nobile, Davide Lo Verde, Marcello Perracchio, Giorgio Bongiovanni, Maurizio Donadoni Added on Netflix 2021-04-28.