Giulio (Jacques Sernas), an Italian Air Force officer is arrested by Allied forces who believe he has deliberately bombed a hospital ship during World War II. Through the efforts of Lida (Doris Duranti), his sweetheart, a witness is found who proves the bombing was not intentional but the result of being hit by enemy fire.
Fugitive in Trieste was one of a number of films of the era, including the British production Sleeping Car to Trieste (1946) and American Diplomatic Courier (1952) that used Trieste as a backdrop. These films often highlighted its cosmopolitan nature and as a borderline between different powers due to the Trieste question.[2]