IC: The Dark Knight
I loved the Dark Knight series, and I think everyone can agree that, although it wasn't perfect, it was certainly a very interesting take on Batman and his world.
What intrigues me is the idea of how ordinary people behave when wearing a mask, or when facing a mask. A mask is essentially a living symbol, as was embodied by the characters in those movies. Have you ever seen a play in which a skilled actor wears a mask? You'll have seen the power that a mask can convey.
I want to create a game in which the characters, otherwise ordinary people, don masks and adopt mythical identities. You will not be required to be good, or bad, or crimefighters, or anything. This will be the real world, present-day, with a 'superhero' or 'supervillain' dropped into it.