Brilliant scientist Joe Messenger believes that people can be made to live for ever. Knowing the human body can be frozen indefinitely, Joe devises a way of downloading the human brain into a supercomputer called ARCHIVE. But Joe's wife, Karen, is worried by his preoccupation with ARCHIVE, which seems to be developing signs of a distinct and sinister personality of its own. Then, just as Joe is on the brink of a scientific breakthrough, a series of macabre accidents befall him and his family - and Joe finds himself facing the terrifying consequences of his own obsessions.