Mafia 90. The Tale of Oldforest.

Sure, that's possible. By the way, so that the "maniac" knows who to kill, I'll probably have to send him a list of infected people at the beginning of each night; otherwise, it will be a bit strange if he decides to, say, kill an infected person named Petya, but it turns out that he was cured by a wizard the previous night. Otherwise, the "Nightmare Difficulty" will be completely pointless.