Murder in a CathedralRuth Dudley Edwardss wickedly funny series taking an irreverent look at the British Establishment continues with this burlesque in a bishopric. For many years Westonbury Cathedral has been dominated by a clique of High Church gays, so when Norm Cooper, an austere, intolerant, happy clappy evangelist, is appointed dean, the announcement is met with shock, outrage and fear. David Elworthy, the gentle and politically innocent new bishop, is distraught at