Summary: A British intelligence agent must track down a fellow spy suspected of being a double agent. (imdb)

Genres: Drama, Suspense/Thriller

Country: UK

Directed By: Sam Wanamaker

Written By: Gordon McDonell, Jack Pulman

Starring: Charles Gray, George Peppard, Joan Collins, Oskar Homolka, Judy Geeson

More information at the Internet Movie Database