Scacco alla mafia 1970 At the Rome airport two men are taken into custody Inspector Scott Luce thinks their two suit cases are full of drugs, but the suit cases contains only white powder Afterwards the corpse of Susan Palmer is found She was a drug runner for the Cosa Nostra boss Frankie Agostino Susans friend, Jenny Ryan, meets a mysterious man from America, Arthur Ardigan, supposedly her cousin In the meantime Inspector Luce is investigating