
Plot
A low-ranking Secret Service agent is conned into supplying information to Eastern Bloc countries. Although he is not a suspect due to his unimportant position, when his office partner is hauled in as a suspect he realises he has got himself into very deep water.
Trailer
Cast

Nicol Williamson
Maurice Castle

Richard Attenborough
Colonel John Daintry

Derek Jacobi
Arthur Davis

John Gielgud
Brigadier Tomlinson

Iman
Sarah

Joop Doderer
Cornelius Muller

Robert Morley
Doctor Percival

Ann Todd
Castle's Mother

Anthony Woodruff
Dr Barker

Keith Marsh
Porter

Gary Forbes
Sam

Angela Thorne
Lady Mary Hargreaves

Tony Haygarth
Buffy

Cyd Hayman
Cynthia

Paul Seed
Shop Assistant

Ken Jones
Messenger

Fiona Fullerton
Elizabeth

Tony Vogel
Matthew Connolly

Martin Benson
Boris

Adrienne Corri
Sylvia

Edward Dentith
Edward

Marianne Stone
Matron

Giles Watling
Colin

Frank Williams
Bellamy

Tom Chatto
Gen. Phillips

Sean Caffrey
Policeman

Clifford Earl
Ferguson

Sylvia Coleridge
Mrs Halliday

Denys Hawthorne
Insp. Butler

Glenna Forster-Jones
Black Prostitute

Morris Perry
Scientist

Richard Vernon
Sir John Hargreaves

Walter Hinds
Van Donck

Philip Chege
Black Man

Norbert Okare
Questioner

Vicky Udall
Castle's Secretary

Brian Epson
Judge

Leon Greene
Tall Man

Robert Dorning
Jameson

Patrick O'Connell
Reader

Raewyn Blade
Secretary

Boris Isarov
Agent

Paul Curran
Halliday

Chantal Gray
Stripper

Jill Goldston
NATO Lab Worker (uncredited)