Twitter Capsule:
This calling card masquerading as a movie attempts a novel take on the slasher genre, but director, co-writer, co-producer Alexandre Aja doesn't put in the necessary work (in any of his roles) to pull off his conceit. Thus, this empty, stupid, tedious exercise results in nothing more than graphic violence for the sake of graphic violence and bullshit conceptual twits for the sake of bullshit conceptual twits.