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Content snapshot
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Violence
A lot
Significant thriller violence — the killer pursues the family with lethal efficiency
Language
Some
Moderate language in the thriller genre
Sexual Content
Barely any
Brief adult references
Substance Use
None
No substance use
Emotional Intensity
Some
Themes of identity, the nature of the self, and a family under threat from a perfect monster
What this book is about
Koontz's 1993 thriller about Marty Stillwater, a mystery novelist who discovers his genetic duplicate — a perfect killer without a conscience — wants to take over his life and family. Significant thriller violence; the killer is deeply disturbing. Adults and older teens.
Notes for sensitive readers
Reader-flagged moments and themes that may affect your experience.
Significant thriller violence
Family in danger
Reader Verification
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More Horror books from the catalog.
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