My Favourite Psychological Thriller Tropes (And Why I Can’t Get Enough of Them)

If you've ever searched on the BookTok hashtag, scrolled through Goodreads, or found yourself down a rabbit hole of psychological thriller recommendations in the Facebook groups, you've probably come across the word trope.

But what exactly is a trope? I’m answering this because the word baffled me when I first started out as a writer.

Simply put, a trope is a familiar storytelling device or theme that readers instantly recognise and love – almost like a promise of what they’re going to get. Mention a locked room, a missing person, or an unreliable narrator, and thriller fans immediately know what they're in for – secrets, lies and plenty of twists.

Some people think tropes make stories predictable, and I used to think the same. I thought the word trope meant cliché, and now, I couldn't disagree more.

The best psychological thriller authors use tropes as a starting point, then turn them completely on their heads throughout the story. In other words, readers think they know what's coming… until they realise they've been heading in entirely the wrong direction.

As both a hooked thriller reader and a psychological thriller author, I return to these tropes again and again.

1. The Unreliable Narrator

If I can't completely trust the person telling me the story, I'm hooked.

Perhaps they're lying to the people around them. Perhaps they're lying to themselves. Or perhaps they're telling the truth, but nobody believes them.

An unreliable narrator makes readers question every page, searching for clues while wondering what's really happening.

Books I love:

• Gone Girl by Gillian Flynn (the first psychological thriller I ever read)

• The Girl on the Train by Paula Hawkins

• Sometimes I Lie by Alice Feeney

As a writer, I love exploring characters whose perception of events slowly begins to unravel, allowing readers to piece together the truth before, or sometimes after, the characters piece the truth together themselves.

The tropes in In His Shadow

2. The Perfect Marriage That Is Anything But

A beautiful home. A seemingly perfect couple. A secret hiding just beneath the surface.

Domestic psychological thrillers thrive because they remind us that appearances can be dangerously deceptive.

Some of my favourites include:

• Behind Closed Doors by B.A. Paris

• The Housemaid by Freida McFadden (And btw, the film is brilliant!)

• The Family Upstairs by Lisa Jewell

  
  

My own novel In His Shadow explores what happens when secrets, lies and deception expose the cracks in a relationship, proving that sometimes the greatest danger is already inside the home.

3. The Returning Past

Nobody can outrun the past forever.

Whether it's a childhood secret, a crime, or a relationship someone thought they'd left behind, I love stories where yesterday quietly catches up with today.

Brilliant examples include:

• Rock Paper Scissors by Alice Feeney

• Then She Was Gone by Lisa Jewell

• The Doctor’s Wife by Daniel Hurst

  
  

Family secrets and the lasting impact of the past are central to my novel The Twin Brother, where history refuses to stay buried.

4. The Missing Person

Few openings pull me in faster than someone having disappeared.

The mystery isn't simply where they've gone. It's what their disappearance reveals about everyone left behind.

Books I recommend:

• The Couple Next Door by Shari Lapena

• Local Woman Missing by Mary Kubica

• Her Missing Husband by AJ Campell (My author buddy – her books are fab!)

5. The Stranger Who Knows Too Much

Someone appears unexpectedly... and somehow knows things they shouldn't.

Instantly, every conversation becomes uncomfortable, every interaction suspicious, and every revelation raises more questions.

I love the creeping unease this trope creates.

6. The Locked-In Situation

Whether it's a snowstorm, a remote island, an isolated hotel or a nationwide lockdown, trapping characters together creates instant psychological tension.

With nowhere to run, secrets become impossible to hide.

Books that use this brilliantly include:

• One by One by Ruth Ware

• The Sanatorium by Sarah Pearse

  
  

This was one of the ideas that inspired Lockdown, where confinement becomes every bit as dangerous as the threat outside.

With some of my favourite books

7. Dual Timelines

I adore stories that move between past and present.

Done well, every chapter answers one question while raising two more, allowing readers to slowly assemble the truth piece by piece.

Some wonderful examples are:

• The Night She Disappeared by Lisa Jewell

• The Wife Between Us by Greer Hendricks and Sarah Pekkanen

8. Toxic Friendships

Friendships should be built on trust, unless you're reading a psychological thriller.

Few things fascinate me more than relationships fuelled by jealousy, obsession, manipulation and betrayal.

That's exactly the territory I explore in Frenemy, the first book in my Dark Hearts trilogy, where friendship quickly becomes something far more dangerous.

Readers who enjoy this trope might also love:

• An Anonymous Girl by Greer Hendricks and Sarah Pekkanen

• The Other Woman by Sandie Jones

9. The Twist You Never Saw Coming (But Should Have)

The very best twists don't cheat.

Instead, they make you realise every clue was right there in front of you all along.

Freida McFadden is a master of this, while Gillian Flynn also has an extraordinary ability to hide the truth in plain sight.

As a writer, creating this kind of twist is one of the hardest, yet most rewarding parts of writing psychological thrillers. It often doesn’t come to me until I’m actually writing, which is what I prefer, since if I, as the writer, don’t even know what’s going to happen until I’ve worked it out, then it should be doubly hard for readers to predict.

10. The Final Chapter That Changes Everything

You think you've reached the end.

Questions have been answered. Justice has been served. As a reader, you relax. Then one final chapter turns everything upside down.

Those endings stay with me long after I've closed the book, and they're exactly the kind of emotional punch I hope readers experience when they reach the final pages of one of my novels – I so love to put one final twist in the epilogue!

Why We Love Psychological Thriller Tropes

The truth is, tropes aren't clichés, they're the building blocks of great psychological thrillers.

A dual timeline, a family member with a secret, a toxic in-law or a shocking final twist doesn't guarantee a brilliant novel. It's what the author does with those familiar ideas that makes the difference.

The best psychological thrillers take something we think we recognise and transform it into something unforgettable.

As both a reader and a writer, I'll never tire of trying to solve impossible situations, questioning every character's motives, and experiencing those delicious moments when a story pulls the rug from beneath my feet. After all, isn't that exactly why we read psychological thrillers?

Over to You

What's Your Favourite Psychological Thriller Trope of All Time?

Are you drawn to unreliable narrators, missing persons, family secrets, toxic friendships, locked-room mysteries, or jaw-dropping final twists? Or is there another psychological thriller trope that keeps you turning pages long into the night?

I'd love to hear your favourites in the comments, and perhaps discover a few new books to add to my ever-growing reading pile!

And if enough of you like exactly the same tropes, your favourites are something I can factor into my forthcoming writing schedule over the next couple of years.

Thanks for reading!

Maria x