Lynda Tillman's son Derek disappeared in what is purportedly a haunted house and she wants physicist and debunker of supernatural phenomena Leviticus Mitchell to prove it was the work of ghosts. Derek used to go to the house in question to be alone and when she subsequently visited the house, Lynda says she could hear whispered voices. The police believe that Derek simply ran away and while Mitchell believes there has to be a logical explanation for the boy's disappearance, he agrees to look into it. He learns that Derek's girlfriend, Nadia Torrance, disappeared around the same time. When they find a room behind a walled-up doorway, they see it's a laboratory and find what may be a meteorite. Mitchell soon learns that there is a scientific explanation for what has happened, even if it is other worldly.
—garykmcd