"Is this a dagger which I see before me..."Four murders. Three witches. A fiendish lady. A homicidal husband. A ghost. No wonder "Macbeth "is considered such bad luck by theatre people that they won't mention its name out loud. But the new London production of "the Scottish play" promises to be a smash until gruesome pranks begin plaguing rehearsals. And when the last act ends in real-life tragedy, Chief Superintendent Alleyn takes center stage-uncovering a heartbreaking secret, murderous jealousy, and a dark, desperate reason for "murder for foul..".