The 50th episode of Buffy the Vampire Slayer was, it just so happens, written and directed by Joss Whedon.  ‘Doppelgangland’ showcases many of the key strengths of Whedon and of his most fully-realised, successful story-world: a tightly-plotted, fantastical scenario, revolving around an established ensemble of eloquent and witty characters who are manoeuvred into a series of dramatically effective constellations, is used to create situations in which characters feel deeply, respond emotionally, and are placed in life-or-death situations, as a way of tracing out some of the contours of personal identity via interpersonal interactions.  870 more words