At the venerable Vulcan Theater, tensions are running high on opening night. There are the usual problems — muffled lines, a late curtain, egos butting heads — but the show must go on. And it does... until the entire production is upstaged when the leading man is found backstage, dead. Was it suicide or murder? Sir Roderick Alleyn assumes his role as detective in a puzzle that might be a macabre encore to a long-ago murder in the same behind-the-scenes quarters. Ngaio Marsh’s mystery takes the listener into something far more intriguing than ordinary backstage squabbles.