An ordinary man makes an extraordinary discovery when a train accident leaves his fellow passengers dead — and him unscathed. The answer to this mystery could lie with the mysterious Elijah Price, a man who suffers from a disease that renders his bones as fragile as glass.
Five young individuals agree to live in an isolated lodge together and have their daily activities filmed. But soon the house is locked down and they each run into the murderous clutches of a faceless serial killer who may not be working alone.