Trailer for Japanese film Jinro Game (literally Werewolf Game), starring Nanami Sakuraba, Taiga, Seika Taketomi, Jingi Irie and Mina Fujii…
The movie is inspired by the Werewolf card/party game (aka Mafia, and many other variants). The idea is a group of “villagers” trying to find a werewolf – or pack of werewolves, depending on number of players – within the group.
The game is run in alternate phases – “day time” when the villagers try to figure out who’s the werewolf, and “night time” when the stealthy werewolf eliminates a villager. The game ends when the werewolf is caught, or when the villagers are outnumbered by the werewolves (not sure who’s the winner if its 1 vs 1).
In the movie, Sakuraba plays a high school girl kidnapped and forced to play the game with nine other people in an abandoned school, in which a person will be killed each night (presumably chosen by the players, or those who try to escape) until they figure out who’s the werewolf.