11 Harrowhouse
A small time diamond merchant jumps at the chance to supervise the purchase and cutting of a large first class diamond. But when the diamond is stolen from him, he is blackmailed into pulling off a major heist at the Diamond Exchange, located at 11 Harrowhouse.
Cast
Charles Grodin
Candice Bergen
James Mason
Trevor Howard
John Gielgud
Helen Cherry
Peter Vaughan
Cyril Shaps
Leon Greene
Jack Watson