North by Northwest1959

The Professor:
We do nothing...That's right, nothing. Oh, we could congratulate ourselves on a marvelous stroke of good fortune. Our non-existent decoy George Kaplan created to divert suspicion from our actual agent has fortuitously become a live decoy... What can we do to save him, without endangering our own agent?...We didn't invent our non-existent man and give him the name of George Kaplan, establish elaborate behavior patterns for him, move his prop belongings in and out of hotel rooms for our own private amusement. We created George Kaplan and labored successfully to convince Vandamm that this was our own agent hot on his trail for a desperately important reason...If we make the slightest move to suggest that there is no such agent as George Kaplan, give any hint to Vandamm that he's pursuing a decoy instead of our own agent, then our agent working right under Vandamm's very nose will immediately face suspicion, exposure and assassination, like the two others who went before.