Summary
A British agent's son is kidnapped and held for a ransom of diamonds. The agent finds out that he can't even count on the people he thought were on his side to help him, so he decides to track down the kidnappers himself.
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Cast
Michael Caine
Maj. John Tarrant
Donald Pleasence
Cedric Harper
Delphine Seyrig
Ceil Burrows
Clive Revill
Alf Chestermann
John Vernon
McKee
Joss Ackland
Chief Supt. Wray
Janet Suzman
Alex Tarrant
Catherine Schell
Lady Melissa Julyan
Joseph O'Conor
Sir Edward Julyan
Denis Quilley
Bateson
Derek Newark
Monitoring Policeman
Edward Hardwicke
Mike McCarthy
Joyce Carey
Miss Monley
David Daker
MI5 Man
Hermione Baddeley
Hetty
Patrick Barr
Gen. St. John
Yves Afonso
Jacques (uncredited)
Robert Dorning
Jeweller (uncredited)
Jill Goldston
Commuter (uncredited)
Peter Halliday
Customs Officer (uncredited)