American Shelley North (Charisse) and her husband are vacationing in Rome when he suddenly disappears. When she goes to the American embassy for help, Shelley is reunited with ex-lover, reporter Dick Sherman (O'Brian), who decides to help her out. A dead body in the Trevi fountain isn't the missing Mr. North but Dick thinks there's a connection and he and Shelley take their investigation to Venice. Available as a Drive-In Double Feature with "Espionage in Tangiers."