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Cover of Shutter Island

Thriller · 2003 · R

Shutter Island

by Dennis Lehane

A U.S. Marshal investigates a missing patient at an island asylum—and can't trust what he sees.

For17+GenreThrillerLength369 pagesRead time~10 hours

This analysis was generated by AI from publicly available reader reviews, literary criticism, and book discussions. It has not been verified by a BookLens community reviewer and may contain errors. Be the first to verify →

Content snapshot

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What's in this book, at a glance — five things readers want to know before they start.

Violence

A lot

Graphic flashbacks to wartime atrocities; violence in the asylum setting; a horrific child-drowning backstory

Language

Some

Strong language throughout

Sexual Content

Barely any

Brief sexual references

Substance Use

Barely any

Some alcohol and medication use

Emotional Intensity

Very heavy

Deeply unsettling psychological unreliability; severe trauma, guilt, and mental illness as central themes

What this book is about

In 1954, U.S. Marshal Teddy Daniels arrives at Ashecliffe Hospital on Shutter Island to investigate the disappearance of a patient. As a hurricane cuts the island off from the mainland, reality begins to fray: Daniels starts questioning the staff, the other patients, and ultimately himself. Lehane's psychological thriller delivers one of crime fiction's most devastating twists, exploring trauma, guilt, and the human mind's capacity for self-deception.

Notes for sensitive readers

Reader-flagged moments and themes that may affect your experience.

Graphic wartime violence

Child deaths (backstory)

Psychological manipulation throughout

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