When operations in Vienna begin to go awry, British intelligence agent John Shay (George Peppard) suspects fellow spy Adam Booth (Keith Michell) of working for the Soviets. But when Shay presents his accusations, they are instantly dismissed by his superiors, who warn him against an investigation. Forced to work alone, Shay embarks on a mission to confirm his suspicions and discovers a truth more shocking than he imagined. Judy Geeson, Joan Collins, Charles Gray also star in this spy thriller. 111 min. Widescreen; Soundtrack: English Dolby Digital mono.