Private eye Edward Mercer travels to Venice to locate a man due a reward for his aid in the war. Shortly after arriving, he becomes the prime suspect in the murder of his local contact. In his quest to clear his name, Mercer uncovers a conspiracy. Even the local magistrate seems to be working against him, and Mercer begins to suspect the man he came to find is behind it all.
Richard Todd
as Edward Mercer
Eva Bartok
as Adriana Medova
John Gregson
as Renzo Uccello
George Coulouris
as Chief of Police Spadoni
Margot Grahame
as Rosa Melitus
Walter Rilla
as Count Boria
John Bailey
as Lieutenant Longo
Sid James
as Bernardo
Martin Boddey
as Gufo
Michael Balfour
as Moretto
Sydney Tafler
as Boldesca
Miles Malleson
as Grespi
