The only thing similar I've ever played was a Werewolf party game. Essentially there are two were-wolves and one mystic chosen at random in the "township". Every "night" the werewolves kill one person off (while everyone has eyes closed), and every night the Mystic gets to guess who a werewolf is (signified by a yes or a no nod from the GM while everyone still has eyes closed). During the "day" it's basically a big witch hunt. Everyone tries to decide (werewolves included) who they should kill off in the hopes of it being the Werewolf.
During the round I played I was the mystic. Fact: It's not smart to try and validate your claim that you know who the werewolf is by saying "I'm the mystic". Surprisingly it was the township who had me killed rather than the werewolves. They decided I was being too honest.