The murder of a museum curator places art dealer Jack Saunders under suspicion for selling forged treasures to museums. When Jack suddenly dies in a car crash, his wife Adrienne tries to discover what he did on her own. She finds that she knew little about the man she was married to. The more she learns about her husband's possible illegal activities and double life, the more she places her daughter, and herself, in grave danger.

Val McKee and Earl Bassett are in a fight for their lives when they discover that their desolate town has been infested with gigantic, man-eating creatures that live below the ground.