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(en)
4.0
2011
1h28m
Horror
Thriller
Overview: A group of people awaken to find themselves prisoners in a mysterious house with no means of escape. They are each outfitted with electronic devices attached to the base of their skulls. The chemicals that the brain produces when in pain are collected by the devices, and when it collects a predetermined amount, the doors will be opened. In order to escape, they must hurt themselves and each other.
Status: Released
Release date: August 25, 2011
Countries of origin: United States of America,