En route to their honeymoon in the Scottish Highlands, Paul and Carol Wilson lose their way in an unseasonable blizzard and are forced to take shelter in remote Ardvreck House.

But this sprawling, dilapidated Victorian mansion, with its reputation as the scene of violent unsolved mysteries, is also playing host to an eclectic and mysterious group of people who are engaged in a bizarre experiment. It soon becomes clear that even more threatening than the worsening storm outside are the dangers within: The Wilsons and the rest of the assembled company may not survive their stay, as...