What is A Thriller?

By Carol Willis

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After I took the plunge and quit my job as a pathologist to write full time, the first novel I ever completed for adults was a psychological thriller. It is a genre near and dear to my heart. I love reading them, and love writing them even more. What is a psychological thriller? And what makes them so compelling? 

Let’s dig in.

Thriller is a genre of literature defined by the primary mood of dread and suspense. They aim to make readers unsettled, nervous, and eager to read what happens next. All fiction should elicit some amount of stress in the reader in the form of tension and conflict, but in a thriller novel, the stress is the main feature. They often feel cinematic and involve high stakes and dramatic plot points. 

In short, if it “thrills,” it is a thriller. 

In the introduction to Thriller, a major anthology published in June 2006, James Patterson says:

Thrillers provide such a rich literary feast. There are all kinds. The legal thriller, political, spy, action-adventure, medical, military, police, romantic, historical, religious, high-tech. The list goes on and on, with new variations constantly being invented. In fact, this openness to expansion is one of the genre's most enduring characteristics. But what gives the variety of thrillers a common ground is the intensity of emotions they create, particularly those of apprehension and exhilaration, of excitement and breathlessness, all designed to generate that all-important thrill. 

In other words, if a thriller doesn't thrill, it's not doing its job.

Thriller is a hybrid of mystery and horror, sharing a literary lineage with the epic and myth. Monsters, terror, and peril prevail. They are dark suspenseful plot-driven stories. 

In his excellent 2019 article for Writer’s Digest entitled, “The Differences Between a Crime, Mystery, and Thriller Novel” David Corbett again emphasizes the emotion: Of the three major suspense genres, thrillers are typically the most emotional, focusing on the fear, doubt, and dread of the hero as she faces some form of what Dean Koontz has deemed “terrible trouble.” 

There are many elements to thrillers that overlap with other novels of mystery and suspense but typically with an exaggerated atmosphere of menace and sudden violence, such as crime and often murder. A devastating crime is about to be committed or has been committed with the threat of another one looming. The villain is known, but his guilt is not certain—or the hero cannot accept the truth of his guilt. Uncertainty and doubt enhance the suspense.

The tension usually arises when the main character(s) is placed in a dangerous situation, and we spend the rest of the novel waiting to see if they’ll escape. Themes typically emphasize the dangerous world we live in, the vulnerability of the average person, and the inherent threat of the unknown. 

Thrillers can take place in exotic settings—think geopolitical and many spy thrillers—but most take place in ordinary suburbs and cities. The main character, the hero, is usually tough and resourceful, but essentially an ordinary person who is pitted against a villain determined to destroy them, their country, or the stability of society. 

Suspense is how an author builds tension throughout the story. It’s necessary in any genre, but it’s absolutely vital in thrillers. Ultimately, your goal for the reader is that they never want to put the book down. Each chapter ends with a cliffhanger, urgent question, or significant plot twist. And the plot must have high stakes. The characters must have a lot on the line—it needs to really matter they succeed. 

In a thriller, the plot should be driven by one big, important question. Think Chris Whitaker’s All the Colors from the Dark. The story begins when Patch is abducted when he is a young boy and held captive in a darkened room along with another young girl, Grace. Patch eventually escapes but spends the rest of his life searching for Grace. It is a complex, multilayered mystery involving missing persons, child kidnapping, and a serial killer weaving several plots lines, each with their own twist, but it is Patch’s quest that becomes the central question that drives much of the suspense throughout the novel. Who was Grace and what happened to her? 

While action does not need to be non-stop, suspense and intrigue need to be constant. There must be a sense of urgency to keep you turning the page.

This basic story structure emphasizes the importance of reader expectations: There is a distinct hero and a villain. The attack on the hero is relentless with escalating terror and dread. The hero must be vulnerable—not just physically but psychologically. 

So, what is a psychological thriller and what makes them different from other types of thrillers? 

The biggest questions revolve around the minds and behavior of the main characters. Common elements in include plot twists, psychology, obsession, and mind games. They incorporate elements of mystery and include themes of crime, morality, mental illness, substance abuse, multiple realities, and unreliable narrators. 

A psychological thriller finds the terror in madness and paranoia. Here the threat is diabolical but more contained, even intimate—usually targeting the protagonist and/or his family—and the hero is often relatively ordinary. 

It is the upending of our prosaic circumstances that disconcert us the most. This is why many psychological thrillers are domestic dramas set in the home, threatening our most cherished relationships such as husband and wife, mother and daughter, or sister and sister. The protagonist (and the reader) come to think if we are not safe in our own home, we must not be safe anywhere.  

Psychological thrillers generally, but not always, stay away from elements of fantasy or science fiction, focusing on events that could take place in real life. However, with advances in medical science and robotics, and the rise of AI, this is changing. Near-future psychological thrillers involving clones or robots gone awry can be eerily convincing. 

In summary, like all good stories, it comes down to setting and character with a problem. The reader must care about what happens next. Psychological thrillers are highly emotional and revolve around the minds and behavior of the main characters. Common elements in include plot twists, mind games, and unreliable narrators to create an atmosphere of menace with looming threats. They are suspenseful and filled with fear and dread to keep readers turning the page. 

In the next series of essays, I will discuss five specific elements we see in a psychological thriller. 

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Carol Willis (she/her) received her MFA in Writing (fiction) from Vermont College of Fine Arts. After receiving her medical doctorate from Texas A&M and an MBA in healthcare from George Washington University, she practiced child health and pathology before moving to Central Virginia. She is the author of a psychological thriller set in Chicago, a dark domestic drama exploring marriage, career, and identity. Her short stories have been published in multiple online journals and anthologies including Valparaiso Fiction Review, Inlandia: A Literary Journey, Living Crue Magazine, Crime in Old Dominion and others. 

Twists and Reveals: The Art of Keeping Your Readers Guessing

By Claire Cooper

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An interesting plot and intriguing characters are key ingredients to keep readers turning the pages of any work of fiction. But if you’re writing thrillers, crime, mysteries, or suspense, twists and reveals can be the secret sauce that turns a good story into a great one.

The two terms are often used interchangeably, but twists and reveals are quite different things. What are they? How do you construct them? And most importantly of all, what needs to be in place for them to work well?

The difference between twists and reveals

A reveal is just what it sounds like—new information that answers an important question. 

It might be the central question of the plot (who’s the killer?). Or it could be a nugget that brings the reader closer to solving the mystery (that dodgy guy who’s been stalking our heroine is her long-lost brother).

A reveal is essential to any whodunnit. Lucy Foley’s The Hunting Party is a classic example—there’s a cast of characters, one of whom is the murderer. The set-up has readers poring over every word, searching for clues to the killer’s identity. When it comes, the reveal is beautifully satisfying.

And while that happens at the end of the story, there are other, smaller reveals along the way. They keep things interesting, provide clues, and allow the reader to form theories about what’s happening. 

Like reveals, twists also impart information—but that’s not all. That information turns everything the reader previously thought they knew on its head.

That creates an exciting reading experience. And it also means readers will recommend your book to all their friends, because they’ll be desperate for other people to talk to about it.

Gone Girl is perhaps the most famous example of a twist in a modern psychological thriller. At the start, it reads as a well-written but conventional mystery: a woman has gone missing, her husband is under suspicion. Has he killed her?

But halfway through, we’re presented with new and shocking information. Everything we thought we knew was wrong. And we’re faced with a different set of questions to keep us reading.

Twists appear in classic crime, too. Agatha Christie’s After the Funeral has one of the most brilliantly constructed twists I’ve ever read. No spoilers: if you haven’t read it, put that right ASAP.

What is it that makes some twists and reveals work so well? And what goes wrong when they fall flat?

Writing a great reveal

Both twists and reveals play on the contract between author and reader. Some people refer to this as the “story promise,” the set-up that tells the reader what to expect if they decide to read the book.

Reveals honor that promise. Twists are an unexpected bonus (although the prevalence of twists in modern fiction means they’re not always unexpected—more on that later).

The reveal in The Hunting Party works so well because it offers readers exactly what they wanted when they started reading the book: they find out who the killer is.

Other reveals along the way answer some questions while posing others, keeping the tension high throughout. At the end, everything is resolved—and crucially, it fits together and makes sense.

That logic is essential. Part of the delight of reading a whodunnit is trying to work out the answer for ourselves. With the best books we fail, whilst knowing we could have succeeded, if only we’d spotted all the clues.

When a reveal goes wrong

When reveals fall flat, on the other hand, it’s often because new information comes out of the blue. There’s no way a reader could have worked it out. And there’s no pay-off for our concentration because nothing we’ve read until that point is relevant. We feel cheated.

The same goes for a reveal that feels implausible. While it could happen in real life, it feels too unlikely to be satisfying. It doesn’t fit comfortably with the world as it’s presented in the book.

Classic reveal fails can be guilty of one or both of these sins. Revealing that a character has an identical twin, say, or that a huge chunk of plot has been a dream—both feel like the author isn’t taking us seriously.

Yes, we know that identical twins exist; and yes, people dream. But if we haven’t been given any clues about what’s going on, the author has essentially been wasting our time. And even if the clues have been seeded, it’s hard to feel that the writer hasn’t taken an easy way out. 

The key to a successful twist

The same rules apply to a twist. It has to make sense. It has to be plausible. And it has to tie into what’s been presented before.

But with the twist, that final criterion is especially difficult to pull off. As writers, we need to lead our readers in the wrong direction, while still playing fair. Our characters can say things that aren’t true—they can be unreliable narrators. But we ourselves can never lie.

In Gone Girl, the twist is set up by the way we’re persuaded to think about the two main characters. One character reveals they’re lying to the police—they must have something to hide. We hear from the other in a context that makes it seem impossible that they’re lying.

That belief colors our interpretation of everything else. When it’s flipped on its head, we realize all our preconceptions are wrong.

The twist here works at a meta level, too. It changes our whole perception of the kind of book we’re reading. The story promise we thought we were being presented with at the beginning is something else entirely. 

That’s a risky approach. But with Gone Girl, it works because it’s so exciting. You thought you were getting something good—but you’re getting something even better.

With Agatha Christie’s After the Funeral, the twist is set up so subtly you don’t notice it’s been done. Not only are we misdirected, we congratulate ourselves for having worked something out for ourselves. What we don’t discover until right at the end is that we got it completely wrong. 

And Christie achieves that while only presenting us with the facts of the story. It’s a masterclass in misdirection.

The role of planning in constructing your twist or reveal

I’d argue that planning is essential to constructing both twists and reveals—even if, for pantsers, it only kicks in at the editing stage.

That planning starts with a clear story promise, the question that will be answered by the end of the book. That gives you the substance for your big reveal. 

To get there, there’ll be other questions that need to be answered. And those mini-reveals should pose new questions, too.

Also crucial is to decide what to reveal when. A good rule of thumb is to release important information at the last possible moment, only when readers need it to make sense of what happens next. Reveal it too soon, and suspense will leak away.

If you’re including a twist, you need to walk a tightrope. On one hand, your reader needs enough information that the twist will make perfect sense. On the other hand, you need to disguise that information in a way that doesn’t allow your reader to spot what’s coming.

There are lots of different ways you can do that. Here are a few:

• Have a character tell the truth, but make them appear so untrustworthy that your reader won’t believe them

• Have a character who lies but appears honest 

• Include red herrings

• Slip out crucial facts alongside revelations that appear more important, so your reader focuses on the wrong thing.

Finally, think about where you want your twist to appear. The only rule here is not to have it happen too soon: you need your reader to have developed a clear (and wrong) idea of what they think is happening for it to have real impact. 

The role of the twist in book marketing

Once upon a time, a twist was a relatively rare thing. These days, in genres like psychological thrillers, it’s almost expected. 

That presents some challenges. If readers suspect a twist is coming, they’ll be on their guard. And some people complain that blurbs mentioning a twist distract them from the story, diverting their attention to trying to spot it. 

It’s a fair point. But it’s also true that a great twist can be the thing that gets readers talking about a book. That, of course, means more sales—and what marketing department or indie author can afford to ignore that?

If savvy readers looking out for a twist are wise to the usual tactics, it’s up to us as authors to respond. Either we find ways to execute those tactics so brilliantly that we still bamboozle our readers, or we come up with new tactics altogether.

That’s pretty daunting—but it’s exciting too. I for one can’t wait for the next book with a “mind-blowing twist!”

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Claire Cooper grew up in a small village in Wales before moving to London as a student. She was a civil servant for 17 years, but hung up her bowler hat when she discovered that she much preferred writing about psychotic killers to Ministerial speeches. She lives in London with her husband and a pond full of very cute newts, and also writes as C. J. Cooper. Her latest book, "The Elevator" is set in New York, Bristol and London, and includes lots of reveals (and maybe one or two twists!). It was published on August 25th.