Tonight's show is a real-life thriller: featuring espionage, double-dealing,  murder and even a dash of Hollywood. And a British ambassador who sees things he  shouldn't - and decides to tell the world. Sounds like the plot of a movie?  Craig  Murray's amazing story has already been optioned by producers - if  you can't wait to see the big-screen version, you can hear him on Litopia After  Dark - you'll be riveted!