I still haven't a clue. But I can report the following: they're all mad. But they each become madder and saner in turn, swirling around and missing each other's madness and sanity in one of those dances where nobody actually touches, until they all, accidentally or deliberately (nobody's sure which), get killed or emotionally maimed - including, especially, the guy who comes out on top.
Fun evening. Everybody who believes they know anything and can do something about it should have watched.