Sean Connery steals a decryption machine from the Russians in Istanbul.
Criminal organization Phantom wants to play MI 6 and the KGB off against each other in order to obtain the Lector decryption machine, a lure for the British. M sends James Bond to Istanbul, where he befriends Kerim Bey, head of the Turkish secret service, and makes contact with Russian Tatyana Romanova, who wants to flee to England. They steal the Lector. On the Orient Express, Grant, Phantom's killer, murders Kerim Bey. Bond kills Grant. With Tatjana and the Lector, he reaches Venice, where he takes on Phantom planner Rosa Klebb.
James Bond's second case involves a Soviet decryption machine and 007 has to deal with both the Russians and a spy organization.