First time I watched it: “Georgina, obviously. Who else could it have been? She wanted to help him!”
I think the audience assume it too.
Peele: “It was Rose. She likes playing cat and mouse games. It is her only flaw.”
That one blew my mind.
Like, because if you watch it the second time you think the brother is the one in danger of giving the game away.
But it was Rose all along. She got off on the risk.
She was crazier than the brother.