Five Key Elements in a Psychological Thriller

By Carol Willis

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Psychological thrillers are driven by emotion and psychological tension, focusing on the minds and behaviors of their characters. They create an atmosphere of menace through plot twists, mind games, and unreliable narrators, keeping readers in suspense with a looming sense of dread. Unlike traditional mysteries, which unravel past crimes, psychological thrillers often establish the villain early, with protagonists struggling to prevent an impending threat. While they share elements with other suspense genres, psychological thrillers stand out for their deep exploration of fear and paranoia. Below are five key elements that define this gripping genre.

Atmosphere of Menace - often characterized by setting, weather, and time of day. Think secluded cabin in the woods, a spooky gothic mansion, ominous storms and in the dark of night. Usually something external that causes anxiety and uncertainty for the main character (and the reader). 

Tension and Danger - Psychological thrillers create tension by placing ordinary characters in inescapable danger, often in familiar settings like suburbs or homes. Unlike action-packed spy thrillers, these stories upend the ordinary, revealing that the greatest threats often come from those closest to us. The protagonist—often a vulnerable yet resourceful woman—must outwit a determined villain, who is frequently a spouse or family member. By rooting fear in the familiar, these thrillers immerse readers in psychological mind games, exploring themes of trust, paranoia, and hidden dangers while gradually unveiling characters’ backstories and mental struggles.

Mind Games and Psychological Manipulation - Characters experience paranoia, gaslighting, or memory manipulation. The villain often leads the protagonist in a high stakes cat and mouse game with escalating danger. The reader is made to feel as uncertain and anxious as the protagonist.

Suspense and Twists - Suspense is how an author builds tension throughout the story. It’s necessary in any genre, but it’s absolutely vital in thriller novels. Ultimately, your goal for the reader is that they never want to put the book down. Each chapter must end with a cliffhanger or significant plot twist or important question. 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. Emphasis is on the eerie over the sensational. Twists again are key, with chapters routinely ending in one disturbing revelation after another. Character is more important than pacing, but pacing can’t be neglected. This subgenre demands an ability to reveal dread and panic without explosions or car chases. 

Unreliable Narrator - An unreliable narrator heightens suspense by making the reader question who they can trust. Often, it’s revealed late in the story that the protagonist suffers from post-traumatic distress, mental illness, a head injury, or drug addiction, distorting their perception of reality. As noted above, lies, paranoia, and flawed memories are common in this genre, which is why many thrillers use a first-person POV. This perspective immerses the reader in the character’s experience, building sympathy while limiting their understanding to a single, potentially deceptive viewpoint—raising the crucial question: how reliable is their version of events?

Psychological thrillers focus on suspense, fear, and the uncertainty of a future crime rather than solving a past one. Unlike traditional mysteries, where the crime has already occurred, these stories often introduce the antagonist early, with the protagonist working to prevent their next move. Common elements include an atmosphere of menace, heightened tension, and psychological mind games. The genre thrives on upending the ordinary, often featuring domestic settings where danger lurks close to home. Suspense is crucial, with chapters ending in cliffhangers or shocking revelations to keep the reader engaged. An unreliable narrator, paranoia, and flawed memories add layers of intrigue, making the reader question what is real. Character development is central, with pacing maintaining a steady build-up of dread rather than relying on constant action.

In the next essay, we’ll take a deeper dive into these five key elements, exploring how they shape psychological thrillers with examples from some of the genre’s most gripping stories. Stay tuned for a closer look at what makes these thrillers so hauntingly unforgettable.

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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.

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.