Werewolf Game 1970 Judge. Vote. Kill.
Overview: Horror-mystery movie based on an adult party game of social deduction created by Dimitry Davidoff in 1986. Twelve kidnapped strangers must play a game where they vote on who amongst them to murder. At night, the "werewolves" hidden among them come out to brutally kill one of the 12 "villagers" in return. The days repeat until one winning group remains.