HA. I'm sure the case would be different if I was dealing with Maxine while I was looking.

I have to bring up Sweeney Todd, I think. There's the Bedlam scenes, Lucy's fate, and of course Todd himself. I guess I have to ask what your criteria are for mental illness? Does it have to be explicitly diagnosed or can seriously, obviously crazy characters apply? Depending on your definition, that Sam Shephard play you recced to me might apply as well, or Glass Menagerie.