🖋️ How to create tension in a thriller: working techniques

Tension in a thriller doesn't come from blood or chase scenes. It comes from one simple mechanic: the reader knows enough to be afraid, but not enough to relax. The genre remains one of the strongest on the market: according to Publishers Weekly citing Circana BookScan, thrillers and suspense sold 25.5 million print copies in 2025, and the psychological subgenre holds about 45% of that segment. Below, we break down how to build that tension piece by piece, drawing on techniques described by David Baldacci, Dan Brown, and Reedsy editors.

💡 Quick overview: tension in a thriller is built through information control, time pressure, and threat to the character. Below, we walk through a working system step by step.

• Pose a dramatic question in the first scene and don't answer it too early.
• Introduce a ticking clock: a deadline after which something irreversible happens.
• Meter out information, leaving gaps for the reader to fill with their own speculation.
• Put the protagonist in real danger and raise the stakes toward the climax.
• Use red herrings and dramatic irony to make the reader get it wrong.

🎯 What actually creates tension

A common misconception: tension comes from action. In practice, it comes from the anticipation of action. Alfred Hitchcock described this through his famous example of a bomb under the table: if the audience sees the bomb while the characters chat calmly, an ordinary conversation becomes torture by anticipation. The audience knows something the characters don't, and that gap in information is what drives suspense.

Reedsy editors put the same idea differently: suspense is the controlled release of information that raises key questions and makes the reader both want and fear to learn the answer. Your job as the author isn't to dump facts, but to decide what to show, when to show it, and how much to hold back.

The market confirms the demand for this effect. According to Publishers Weekly citing Circana, adult fiction grew 1% in 2025, with crime fiction and thrillers remaining among the genre's drivers. NielsenIQ estimates that fiction became the strongest growth segment in international markets, increasing revenue across 15 analyzed territories.

⏳ Ticking clocks: time pressure

The cheapest and most reliable generator of tension is a deadline. MasterClass recommends it directly: if you want background tension throughout the story, shorten the time the protagonist has to complete their mission. They must reach the goal sooner than planned, or disaster strikes.

The clock doesn't have to be literal. It can be a poison that takes effect in six hours, a train leaving at midnight, or a pregnancy that's visible to everyone except the reader, who's waiting for the secret to come out. The main rule: the reader should constantly feel the narrowing window of opportunity.

A deadline gets stronger when the cost of failure rises as the story progresses. In the first chapter, the protagonist's reputation is at stake; by the middle, their freedom; by the finale, the life of someone they love. This escalation of stakes keeps tension from plateauing: even if the pace of events slows, the sense of danger keeps building. Tie each new deadline to something the protagonist truly cares about, otherwise the timer remains a technical device the reader won't feel.

Compare how the same scene changes depending on whether a timer is present. Without one, an investigation scene is just a conversation. With one, it becomes a race.

🔍 Metering information and reader discomfort

Reedsy identifies five working suspense techniques, and almost all of them are about metering. The first is keeping the reader hungry: teasing answers and making them anticipate the payoff, like a baker who doesn't feed the guests all day before the cake. The second is working with foreshadowing, introducing a significant object or phrase that will return later. The third is using flashbacks structured toward a reveal, as Jodi Picoult and Gillian Flynn do.

The fourth technique is putting the character in real danger, especially near the climax. The fifth is always staying one step ahead of the reader: throwing in distractions and red herrings so the reader builds theories but doesn't guess the actual resolution.

The key tool here is the metered delay of an answer. Raise a question at the start of a scene and don't close it until the end of the chapter, or better yet, the next one. That discomfort of an open loop is what makes readers turn pages at one in the morning.

🎭 Point of view as a lever

The choice of point of view directly controls what the reader knows relative to the protagonist. MasterClass describes two opposite modes. Third-person omniscient shows the reader danger before the protagonist sees it, building tension through dramatic irony: we scream at the character not to open that door, and they open it anyway. First person or third-person limited keep the reader in the dark, and facts are revealed exactly when the protagonist learns them.

Experienced authors switch between these modes within a single book. A scene from the perspective of a victim who doesn't know about the threat, next to a scene from the perspective of the pursuer, creates the maximum gap between what the reader knows and what the characters know. That gap is where fear lives.

The unreliable narrator holds a special place. When the reader can't trust the very voice telling the story, tension arises in every paragraph: is what we were just told true? This device requires discipline. The narrator must distort facts consistently and according to an understandable internal logic, otherwise the reader will decide the author is simply cheating. Reread key scenes and check whether the distorted version remains plausible until the moment of revelation, and whether everything assembles into an honest picture afterward.

🪤 Red herrings and fair play

A red herring is a plot device specifically designed to make the reader draw a false conclusion. The classic move is to introduce a suspicious character with a murky backstory: while the reader builds out their portrait and suspects them, the real villain goes unnoticed.

Here the rule of fair play from the golden age of detective fiction applies: the solution must be reachable for an attentive reader, but not obvious. If the resolution comes out of nowhere, the reader feels cheated rather than surprised. That's why every red herring must be accompanied by a real clue hidden in plain sight. Reread your draft through the eyes of someone who already knows the ending: if the key clues are there but masked by distractions, you've played fair.

🩻 Tension at the sentence level

Big structural devices set the framework, but the reader feels tension in specific lines. Here, rhythm is decisive. Short, punchy sentences speed up the heartbeat and work in scenes of pursuit, threat, and decisions made on the edge. Long, viscous passages, by contrast, stretch out the anticipation before a blow. Experienced authors deliberately alternate these registers: a page of long sentences lulls, a page of short ones exhausts, and the contrast between them keeps the reader on edge.

The second lever is sensory specificity. Abstract fear doesn't scare; detail does: the creak of a floorboard, the smell of damp in a basement, the cold of a door handle the protagonist is afraid to turn. Reedsy advises not limiting yourself to sight and bringing in sounds, smells, and tactile sensations, because those are what move the threat from the reader's head into their body. One precise sensory image in a tense scene is worth a paragraph of general musings about anxiety.

The third device is controlling the scene's breathing through white space. Cutting a chapter off mid-sentence, a one-line paragraph, a pause before a reveal: all of these are visual signals of pace. The reader slows down or speeds up not only because of meaning, but because of how the text looks on the page. Use a short paragraph as a punch, and a long scene as the slow compression of a spring.

📚 What today's bestsellers teach

The 2025 market shows exactly what kind of suspense sells. According to Publishers Weekly citing Circana, the psychological subgenre holds about 45% of the thriller segment, and its engine is complex female protagonists and unreliable narrators. Freida McFadden, with her unreliable female narrators, entered the top 20 bestsellers in nine territories, according to NielsenIQ, and her The Housemaid became the number one bestseller in France and Spain.

The takeaway for authors is direct: the modern reader expects not so much external action as the internal instability of the narrator. An unreliable narrator is a structural red herring the length of a novel, where the source of distortion becomes the very voice telling the story. If you're building tension in 2026, a narrator who can't be fully trusted remains one of the most in-demand tools.

⁉️🤔 Common questions about tension in thrillers

How is suspense different from surprise?

Surprise is a short shock from something the reader didn't foresee. Suspense lasts longer: the reader knows something will happen, but not when or how. Hitchcock considered suspense stronger because it holds attention through long minutes of anticipation rather than seconds of shock, and actively engages the reader in the outcome of the scene.

Does a thriller necessarily need a body or violence?

No. Tension is born from threat and uncertainty, not from blood. The threat can be loss of reputation, exposure of a secret, or the protagonist's emotional catastrophe. Psychological thrillers, which make up about 45% of the segment according to Circana, often get by with minimal physical violence and run on internal pressure.

How do I keep tension from sagging in the middle of the book?

A sagging middle is fixed with new questions and raised stakes. When you close one plot loop, immediately open the next one and make the cost of failure higher for the protagonist. Shortening the deadline, as MasterClass advises, also works as a reliable cure for a sluggish middle.

How many points of view are acceptable in a thriller?

There's no hard limit, but each point of view should add an information gap, not duplicate what the reader already knows. Alternating between the victim's and the pursuer's perspectives strengthens dramatic irony, while extra narrators blur focus, slow the pace, and steal tension.

How do I make a red herring convincing but fair?

Tie it to a real clue hidden in plain sight for the reader. They should have an honest chance to solve the ending when rereading the text. If the false trail isn't backed by real clues in the scene, the resolution will feel forced, and trust in the author will drop noticeably.

🚀 Where to start right now

Take a scene from your current draft and check it against three questions: what dramatic question does it open, what time pressure is on the protagonist, and what does the reader know that the character doesn't. If even one answer is empty, the scene has no engine of tension. Rewrite it so that at least one lever is working at full strength, then move on to the next one. Ready to turn your draft into an unputdownable thriller? Publish your story and test the tension on real readers on our platform for authors.