Six strangers, taken against their will, wake up to find themselves prisoners of a masked psychopath. One by one the abductees are ripped from their restraints and hauled away to fall victim to their captor's demented experiments.
Just when it's over for his victims, they get a chance to escape. Now, free from their confines, the surviving captives must venture out into the endless labyrinth of corridors and find a way out before the madman can bring them under his scalpel.