
Tim Hanley, an American agent, posing as a lawyer with the United States Embassy in London, and Reggie Oliver, a Scotland Yard detective, posing as a music critic are both keeping their eye on Carla Nillson, a famous singer, whom they suspect of espionage. They all meet in London, then in Lisbon, and eventually in New York City, where Carla sings on the radio.
Genres:

George Brent as Tim Hanley

Ilona Massey as Carla Nillson

Basil Rathbone as Reggie Oliver

Gene Lockhart as Sidney Grenner

George Zucco as Webster

Marjorie Gateson as Bertha Grenner

Clayton Moore as Sewell

Francis Pierlot as Dr. Rowan

Martin Kosleck as Bruner

Charles D. Brown as Tetlow

Leyland Hodgson as Sergeant Moulton

Gordon De Main as Denby

Frederick Worlock as Sir Henry

Jack Mulhall as Desk Clerk

Ralph Dunn as Don

Sam McDaniel as Waiter
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