Best Thriller and Mystery Books to Read in September 2026

The premise. Alicia Berenson, a famous painter, shoots her husband and then never speaks again. A psychotherapist becomes determined to get her to talk and to uncover the truth.

What you’ll get

• A twisty psychological thriller
• Short chapters that keep you reading
• A big final reveal

You might skip it if you dislike dark, unsettling stories.

Pairs well with: The Housemaid

The premise. For a school project, Pip reopens the case of a local girl's murder that police closed years ago. The more she digs, the more secrets she finds in her small town.

What you’ll get

• A twisty teen mystery
• Podcast-style investigation pages
• A clever, fast plot

You might skip it if you dislike stories involving violence and crime.

Pairs well with: One of Us Is Lying · And Then There Were None

The premise. Ten strangers are invited to an island, and each is accused of a hidden crime. One by one, they start dying, and the survivors realize the killer is among them.

What you’ll get

• A classic locked-room puzzle
• Tight, suspenseful plotting
• A satisfying twist

You might skip it if you dislike older writing conventions.

Pairs well with: A Good Girl's Guide to Murder · The Da Vinci Code

The premise. Symbologist Robert Langdon is pulled into a murder mystery at the Louvre and races across Europe deciphering clues tied to art, history, and a secret society.

What you’ll get

• Short chapters with cliffhangers
• Puzzles and codes
• A quick, fun ride

You might skip it if you want accurate history; it is fiction.

Pairs well with: And Then There Were None · The Silent Patient

The premise. Millie, desperate for a fresh start, takes a live-in job with a wealthy couple, and soon finds that the home is far more unsettling than it seems.

What you’ll get

• A twisty thriller
• Fast chapters
• A big reveal

You might skip it if you dislike domestic-abuse themes.

Pairs well with: The Silent Patient