R | | Horror
A group of friends stop to pick up a hitchhiking woman only to end up getting drugged by her with a gas. They awaken to find that vials have been implanted in the base of their skulls - ...See full summary »
The chemicals being collected, Adrenaline, Dopamine, and Oxytocin, are released when the body is in extreme pain. But like Sam suggested, they're also released during sex. So instead of torturing themselves, the members of the group could've just ... ...