The best episode in a strong Season 7 -- indeed, one of the best in the whole series. The main characters are at their most believable (the episode's early stages positively crackle with authenticity), it moves along crisply and logically and the script is consistently hilarious, thanks not least to an inspired, detailed performance by David Cross as lead "witch" Ward Rackley. (KotH always got the best out of its guest stars.) Even the ending works -- and this is where many otherwise excellent episodes of the show fall down. Simply brilliant from start to finish.