Elisabeth Moss and Keira Knightley to play lesbian lovers

Peggy Olson may not have ended up being a lesbian, but Mad Men perverts fans will still get to see Elisabeth Moss play one anyway. She and Keira Knightley will be portraying "headmistresses whose lives will be destroyed when a pupil accuses the two of being lesbians."

I imagine that fans of lesbian melodrama will be rooting against this pupil. Oh, and they'll also be planning their travel and accommodations starting now, because this racy plot belongs to a London revival of a play called The Children's Hour. You didn't think it'd be that easy, did you?