When Mike Conners welcomes Marvin's Wargrave, he extends his hand. Instead of the expected handshake, Wargrave presents stolen data. This initiates an interesting theme, the avalanche of cold-war creates casualties of denied sybiotic agendas. People 'working the same circuit,' do so without any possible sympathy, willing to sacrifice another's agenda. Death is not physical, but of political and social isolation.
Some may find this to be tedious, but to my delight I loved this film. Stripped of all the tedious plot strands that get added to films and cause them to be dragged down, this is a streamlined suspense movie which, if you peel off the Cold War politics, is spy drama mixed with a tale of human determination in extreme circumstances. Also look out for David Hess in a small role.