More than 400 years after it was written, actors still refer to it as “the Scottish play,” fearful to even mention its name. Such is the dark power of Macbeth, a mystique that has enraptured audiences for centuries. Shakespeare’s shortest tragedy is also his most caustic and thrilling. Witches, murders, ghosts and a femme fatale (not to mention an “eye of newt”) combine in a bubbling cauldron of drama. Follow Macbeth on his bloody path to the throne of Scotland, though you may have to step over the many bodies he leaves in his wake. Something wicked this way comes … to the stage as the Secret Theatre mounts this timeless tale of ambition gone horrifically amuck.