There needs to be some way to make the audience feel the accomplishment just as much as contestants would at winning Clue.
I think if there’s one bit that would be key to this potential show’s success, it would be audience interaction.
Do that, or go the aforementioned route of a one-off Red Nose Day special starring celebrities, and this one would be a winner.
I’m just not sure whether that would be not making the answer immediately clear to the audience or letting them bet on which character will come out on top.