The darling of his academic colleagues after analysing Margaret Thatcher's speech patterns, 'Doc' is suddenly considered the budding new expert on non-verbal communication. A human lie detector is how he likes to think of himself. A sound-proof laboratory in Cambridge where he studied 'natural communication' ill-prepared him, however, for his next big research adventure - the grim streets of Sheffield. In the late 80s the buzzwod was there is no such thing as society. Sheffield certainly proves the point that it is about survival of the fittest. His invite to meet Big Lenny, a bouncer in Sheffield's inner city doesn't start well with his icebreaker question 'have you ever killed anyone?'