Werewolf
A party game drives a woman to reflect upon a history of manipulation.
"After each killing, Claire tried to be kind—defensive of those who were accused of being the werewolf and suspicious only of those making accusations. And throughout each round Claire asked questions about how the game was played, whose answers, in all honesty, she did not have figured out. (Though again, was that the werewolf playing the game, posturing innocence even in her private thoughts? Yes, it probably was. This freaked her out.)"