The premise for this show is on the surface your standard murder mystery however the thing that sets it apart is the manner in which the crimes are commited. Essential the show is about Jonathan Creek a rather strange man who lives in a windmill and designs magic tricks for a living. From time to time he is called upon by an investigative journalist friend to help her investigate strange or impossible crimes using his lateral thinking mind.
The show is fantastically writen with some very clever if overly elaborate plotlines. It is also superbly cast with Alan Davies as the title character.
All in all this is a fantastic show and well worth a watch... just don't spend too long trying to figure out how it was done.