Soho Theatre, London More reviewsAll too often, the compressed, feverish atmosphere of the Edinburgh festival inspires not criticism but hyperbole. Shows transfer to London and wither in the resulting glare of anticipation. For the four twentysomethings behind the Garth Marenghi horror spoofs, playing in London for the first time, the pressure is even greater. Their debut Edinburgh show, 2000's Fright Knights, was a …
