In London, a diplomat accidentally becomes involved in the death of a British agent who's after a spy ring that covets British military secrets.
Kenneth More
as Richard Hannay
Taina Elg
as Miss Fisher
James Hayter
as Mr Memory
Barry Jones
as Professor Arthur Logan
Barbara Steele
as Extra
Brenda De Banzie
as Nellie Lumsden
Faith Brook
as Mandy Robinson ("Nannie")
Joan Hickson
as Miss Dobson
Sid James
as Perce Baker
Leslie Dwyer
as Milkman
Jameson Clark
as MacDougal
Betty Henderson
as Mrs, MacDougal
