Synopsis:
Six supposed friends (more on this later) receive email from Asuka, a friend of theirs who killed herself a short while ago. The email instructs them all to meet in a particular classroom at midnight. Four of them arrive as instructed, and they are met by a girl wearing a bloody rat mask. The girl seems to potentially be Asuka, because Asuka died wearing that same mask, which she had made in preparation for a modern version of a traditional rat dance she had planned to do with her friends.
The person in the rat mask explains, in writing, that vengeance will be had. To underscore her meaning and seriousness, she drags the bloodied body of one of the missing six friends into the classroom. The other four friends run from the person in the rat mask, only to be chased down, captured, made to participate in a "penalty game," and killed when they fail the game. As they try to survive, the big question all the friends are wondering is "Who is the person in the rat mask?" Is it really Asuka, back from the dead and out for vengeance? Interspersed throughout the movie are scenes from the seven friends' past, during the period just before Asuka killed herself.
Review:
The short version: this is a terrible movie. And not in a “so bad, it's good” kind of way. I can't even recommend making fun of it with a group of friends. It's just plain bad.
