After thugs brutalize a deaf-mute woman, the spirit of an Apache warrior takes over her lifeless body and sets out on a bloodthirsty quest for revenge.
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.
Killjoy is back in the fourth installment of the demonic clown series. This time Killjoy is being accused of not being evil, since he let one of his victims(Sandie) get away. Killjoy must rely on his only chance of proving how evil he really is... get Sandie into hell as his witness.
