Vile

A group of good-looking young individuals suddenly find themselves trapped in an enigmatic house with no way out. Each of them is equipped with a new gadget—an electronic device affixed to the back of their necks. A message on a TV screen informs them of their mission: to secure their freedom, they must inflict pain on themselves and one another. The devices gather the brain’s pain-induced chemicals, and once a set quantity is collected, the doors will unlock. If they don’t achieve this in time, everyone will perish.