Two years after watching in terror as his best friend Mark (Josh Ethier) vanished in a flash of light, haunted Seth (Graham Skipper) is still wrestling with accusations that he played a role in the disappearance when Mark mysteriously reappears, embarking on a vicious killing spree in their small New England town. Meanwhile, Seth begins to suspect that his old friend has been taken over by something sinister, and tries in vain to convince Mark's suspicious girlfriend Jen (Vanessa Leigh) that the real nightmare is only beginning.