Theatergoers yearning to see a new spin on Macbeth need look no further than Zinnie Harris’s Macbeth (An Undoing). Written and directed by Harris, it is a feminist version of Shakespeare’s original that puts Lady Macbeth at its center. But while Harris succeeds in expanding Lady Macbeth’s presence in the story, ultimately the playwright is defeated in increasing the character’s agency, given Shakespeare’s clear-cut trajectory of the doomed Queen.