Eleven friends played a popular game called 'Werewolf' in a library, instead of doing their essays. They got their own character cards, and were ready to play. It all started when their teacher caught them playing and took their cards away. That night, the 'Werewolves' started to kill some victims, leaving everybody scared and accused each other. Will they be able to know who the Werewolves among them? Will they be able to stop the Werewolves before it's too late? Or will the Werewolves win their own game?