As a small child, Nikki (Kim Delaney) had an accident which left her unable to bear children. Her mother, on her death-bed, pleaded with Nikki to 'beware of miracles'. When handsome professor Alex miraculously saves Nikki from being hit by a speeding car, she soon forgets her mother's warning and embarks on a passionate affair with him. Nikki then becomes pregnant, and gives Alex a son. The child turns out to be the spawn of Satan himself.