I wasn't exactly a fan of the novel this play was based on, and this adaptation is an unimpressive work, having to shift material to conform to stage conventions in a way that loses the effect of the original but gains no new effectiveness. Giving the villain a larger role without changing the plot only foregrounds what a terrible, unthreatening plan she had to begin with.

I did like the gag in the third act about everyone coming in through the window, though.