Black Rat
From Kenta Fuksaku, comes a twisted tale about the lives and deaths of several high schoolers. They receive a message from their friend Asuke telling them to go back to their classroom in the middle of the night. This ordinarily wouldn't be an issue, except for the fact that Asuka was supposed to have committed suicide. The group does as they are told, only to run into a killer wearing a bloody rat mask seeking revenge. Will they be able to uncover the indentity of their mystery murderer and survive til the next morning?
Starring Misaki Yonemura, Hiroya Matsumoto, Makoto Sakamoto, Rina Saito, Haruka Shimizu, Mika Shimizu, Rihoko Shimomiya, Shôta Miyazaki
It's a drama and horror movie, and has a rating of 4.7 out of 10 from Imdb which is fairly low for this kind of movie.
Watch it here
Not found streaming from Belgium.