Eleven gay men and one straight man are locked in a house. Every room is fully wired for video and audio, and while some of it clearly won't be aired it is there to prevent cheating. there is no place in the house to hide and make deals. Attempting to do so instantly eliminates the parties attempting to do so. The object for the gay men is to find out who isn't gay, and the straight man to not be found out. Once a week someone gets outvoted, until two are left or the straight man is out. If the gay men manage to outvote the straight man, all the remaining contestants get an equal share of twelve million dollars. If the straight man is among the last two people in the house in the end, he wins the entire twelve million dollars.
Now here's the twist: None of the men are actually gay. They all just think they are the one straight man playing for twelve million.
I figure Comedy Central would buy it and put some C-List comedian as the host.