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,

Genre:Drama, Action, Comedy, Crime,

country:United Kingdom, United States of America,

Production:Elliott Kastner Productions, 20th Century Fox,