It was the one where one person was the "bad guy" ,one person was the cop, and everyone else was a "civilian". Maybe multiple cops and bad guys. Anyway, the bad guy killed one person per day, while the cop accused one person per day. Or something like that.
I kinda remember.. Think it was like one citizen or whatever was killed off each time, and the one detective (or two?) picked two people that they think were responsible for it. Then the two accused would have to post their defenses. And after they were done we would vote on if they were guilty or not guilty.. And of course the object is for the two mafia guys (who stay mafia guys the whole game) to stay alive, and the detective to try and find out both of the mafia guys..
The biggest problem was that it was more like a game of Mafia vs. Mafia instead of Detectives vs. Mafia. I don't recall a single person being voted innocent, regardless of their "defense's" merits.