Having not seen this episode before, but being a fan and quite familiar with the show, I was pleasantly surprised by the slow build-up of the story line and the convincing performance by Zimbalist. The other players were quality actors, making for a balanced thriller / mystery atmosphere and a satisfying ending. To me this is one of the better episodes, the writing a cut above usual, a great performance by Zimbalist - the best actor on the show - and a host of excellent supporting players.