The Third Twin. Poster of the 1997 movie and cover of the 1996 book
VS3
The Third Twin
Ken Follett, 1996
movie vs book
Tom McLoughlin, 1997

University pscyhobiologist Jenny Ferrami, in the process of studying a possible link between genetics and criminal behavior, stumbles upon a secret cloning experiment conducted by a major company. Figuring prominently in the proceedings is likeable law student Steve Logan, who may or may not be the identical twin of a serial rapist… or possibly two rapists!


Whispers. Poster of the 1990 movie and cover of the 1980 book
VS3
Whispers
Dean Koontz, 1980
movie vs book
Douglas Jackson, 1990

Writer Hilary Thomas is being pursued by psychopath Bruno Clavel, a man she once interviewed at his family’s Massachusetts orchard while researching for a book. She eventually kills him, only for the man to show up again, this time sane and without any knowledge of the attacks. The police don’t believe her, but one detective agrees to look into it.