Building Tension: How to Keep Readers on the Edge of Their Seat

Why Tension Is Everything in Crime Fiction

You know that moment when your heart is pounding, your coffee’s gone cold, and you have to turn just one more page—even though it’s 2:00 a.m.? That’s not just a great story. That’s tension keeping you up til all hours.

 

Whether you’re binge-watching Mare of Easttown, reading Gone Girl, or revisiting a classic like The Silence of the Lambs, there’s one thing that pulls you through: the pulse-pounding promise that something is about to happen.

 

Tension is what makes one friend tell another friend about their latest great read. We’re not talking about nonstop action or dramatic explosions (though I do love a good chase scene). Tension is about stakes. Suspense. Silence. Secrets. And the slow, delicious dread that everything is about to change.

 

In my work—whether I’m writing novels, crafting scripts, or helping other writers—I always return to one question:

 

“What’s keeping the reader turning the page?”

 

Let’s explore how to keep them right where you want them—on the edge of their seat.

Anatomy of Tension: What It Actually Is

Let’s get something straight: tension is a tightly woven plot. No extra stuff. 

 

It’s fast pacing. Come into a scene late and leave early. 

 

It’s dramatic scenes stacked on top of each other like a Jenga tower waiting to fall.

 

Tension is the emotional pressure between what a character wants… and what’s standing in the way.

 

At its core, tension is built from three things that all stem from your hero:

  1. Stakes – What happens if your heroine fails?
  2. Obstacles – What stands in her way?
  3. Uncertainty – Will she succeed?

The stakes, obstacles, and uncertainty are the trifecta of tension that keeps your reader hooked. Even if they’re pretty sure the detective will survive, they don’t know how. They don’t know who to trust. They don’t know when the hammer will fall. That’s tension.

 

Let’s break down these three tools that will help you build, stretch, and escalate that tension all the way to the final page.

1. Raise the Stakes (Then Raise Them Again)

Every story needs stakes. In crime fiction, those stakes usually start high: someone’s dead. Someone’s missing. Someone’s lying. But it’s not enough to have big stakes—they need to be personal.

 

Ask yourself: “Why does this matter to this character—right now?”

 

Maybe your detective is solving a murder. But what if the victim was their sister? What if the suspect is their ex-partner? What if their own career is on the line? Now it’s not just about justice—it’s about guilt, memory, loyalty, and loss.

 

And here’s the trick: once your readers care, you have to escalate.

  • New evidence throws the case into question.
  • A key witness goes missing or is murdered.
  • The main suspect is released on a technicality.
  • The hero’s secret past is about to come out and the killer is using it against him.

Raise the stakes in increments and increasing intensity from act one all the way through the story’s climax. Keep the pressure mounting until your protagonist—and your reader—can’t breathe.

2. Master Pacing Through Scene Length

Tension has rhythm.

 

Too much action without pause = burnout.
Too much quiet without conflict = boredom.

 

You have to master the ebb and flow. Think of your story like a rollercoaster. You need climbs, dips, false summits, and sharp turns. But you also need that slow click click click before the drop.

 

Tools for Managing Pacing:

  • Sentence length – Shorter sentences = faster rhythm.
  • Chapter endings – Should not be static. End with a cliffhanger or story turn.
  • Scene cuts – Alternate chapters and script scenes by alternating POVs.
  • Paragraphing – Break up blocks of text to control reader speed.

 

Pro Tip: Use pacing to build emotional cliffhangers. A tense family dinner can be just as gripping as a car chase if the stakes are clear and the silences are heavy and the words are few between family members. Subtext in dialogue creates tension.

3. Red Herrings & False Leads: Keep 'Em Guessing

If you’ve ever yelled at a book or screen, “I KNEW it!” only to find out you were wrong—that’s the magic of misdirection.

 

Red herrings, false clues, and misleading suspects are essential tools in crime storytelling. They keep the reader thinking, analyzing, second-guessing. But they also build tension by delaying the truth.

 

Here’s how to do it well:

  • Make your red herrings plausible. They need real motive, opportunity, and emotion.
  • Plant subtle clues that support both the truth and the lie.
  • Use red herrings to deepen character and theme—not just as plot tricks.
  • Weave them in early and reinforce them naturally—the best twists feel earned, not inserted.

 

Red herrings are most effective when they complicate the emotional stakes. Let them force your characters to doubt themselves, betray allies, or take dangerous risks. The more believable the misdirection, the more satisfying the truth reveal.

 

🖊️ Writer’s Caution: Twists, turns, or tropes can not be random. A good red herring leads to an “ohhh”—not a “wait, what?”

4. Let Dialogue Simmer

Tension lives in what’s not said.
The pause before the confession.
The question no one answers. 

 

The question the hero is afraid to ask.
The smile that doesn’t match the eyes.

 

In your dialogue, look for ways to let subtext do the work. Make your characters speak around the truth. They never say what they’re really thinking and feeling. They dodge. They tell white lies. Sometimes, they leak information.

 

Here’s a simple example:
“I didn’t think you’d show up.”
“I was hoping the same.”
Boom. Tension.

 

Use dialogue to create pressure between characters—especially those with history, secrets, or opposite goals. That verbal friction keeps readers locked in, wondering who’s going to snap first.

 

There are moments in the plot where characters need to explain things to one another in order to build an investigation and present their theories. 

 

But when diving into scenes or chapters where you want to drive the plot faster and create heightened tension, beware of the over-explain. 

 

Short, clipped exchanges often carry more weight than long speeches. The silence between lines of dialogue can speak volumes—especially when it’s laced with regret, fear, or suspicion. Dialogue in tense scenes should feel like a verbal chess match, each line a strategic move that edges the scene closer to its breaking point.

5. Layer Subplots That Interfere, Not Just Intersect

Want to increase pressure in your plot? Give your protagonist more than one fire to put out.

 

Subplots—when done well—add depth, stakes, and interference.
Maybe your detective is juggling a murder case and a custody battle.
Maybe your coroner’s investigator is hiding their own secret about a missing person.
Maybe your amateur sleuth is lying to her husband about why she keeps disappearing at night.

 

Competing priorities and plots = more tension.

 

The best subplots exist alongside your main story and complicate it. They introduce emotional conflict, ethical dilemmas, and moments where your protagonist has to choose what (or who) to sacrifice.

 

💡 Writer Tip: Subplots aren’t padding. They should tangle with the main plot and force your protagonist to make tough choices—ones that have real consequences.
Bonus points if your subplot twists change how the main mystery unfolds.

💔 6. Emotional Tension > Physical Danger

Don’t fall into the trap of thinking tension = gunfire, chases, and screaming.

 

The most powerful tension stems from motive. And motive is always driven by an experience that triggers the emotional side of our humanity:


The daughter who doesn’t trust her mother’s innocence.
The detective who’s covering up a mistake that cost someone their life.
The villain who acts out of pain from a broken childhood.

 

Let readers feel the psychological strain of your characters. Tension is about what might happen. It’s about what’s already happened and how that might play into the hero’s future. 

 

Heroes and villains carry the weight of their psychological strain locked inside of them; and that often overpowers the logical.

 

Ask yourself:
What does your protagonist fear most? What is the worst thing they have to lose? What will happen to them if they fail in getting their goal? 

 

Emotional tension sticks. It lingers in the dialogue, the decisions, the silence between two people who can’t say what needs to be said. When readers connect to that internal tug-of-war, they stay invested—because it’s not just about solving the crime… it’s about surviving the fallout. Push your characters to the brink—externally (whiff of death!) and internally (at their core need).

Case Study: The Power of Delay

When creating The Coroner’s Daughter series, I wanted Emily to have to struggle personally and professionally in each book. I knew that Emily would be a brilliant coroner and investigator. But she had a long way to go when it came to the skeletons in her private life.

 

In Frozen Lives, Emily is facing a chilling new crime and facing her personal past. She’s reckoning with grief of losing her true love. And she’s wondering whether her father’s legacy is really hers to inherit. Does she truly belong in Freeport? Can this be her forever home? 

 

Tension comes from the fact that Emily can’t walk away from home, even when she wants to. That push-pull? That’s where the suspense lives.

 

Every decision she makes is haunted by doubt. Every step forward forces her deeper into the emotional minefield she thought she’d left behind. And just when she starts to regain her footing, the case twists again—raising new questions, new stakes, and new emotional consequences.

 

She must find a way to solve the crime and catch the criminal, but will she break in the process?

 

Delaying resolution—internally and externally—allows tension to accumulate like pressure in a sealed jar. The longer it simmers, the more powerful the payoff. That’s the kind of story that keeps readers turning pages and coming back for more, book after book.

Writer Tools: My Tension Checklist

Here’s a quick cheat sheet I use in my own editing passes. Ask yourself:

  • 🔎 Does each chapter end with a question, twist, turn, cliffhanger, or shift?
  • ⏱️ Is the pacing varied between chapters and scenes to allow breath and build?
  • 💣 What is the ticking clock the hero is up against?
  • 💔 Are the emotional stakes clear and rising?
  • 🧩 Do subplots interfere and complicate the main plot?
  • ❓ Are there at least 2–3 red herrings or false leads?
  • 🧬 Is every scene contributing to the plot pressure and the pressure on the hero? 

 

If not, go back and rework it. 

 

The tension doesn’t have to shout. In fact, the most powerful tension often whispers.

 

It says:
Something’s coming.
Something’s not right.
Someone’s about to break.

Your job, as the writer, is to pull the thread—slowly, deliberately, relentlessly—until the reader has no choice but to follow it all the way to the end.

 

And when they get there?
Make it worth every skipped heartbeat and held breath.

Want More?

👉 Subscribe to my newsletter for more behind-the-scenes crime writing tips.
👉 Check out Forensic Speak for the technical breakdown of crime scene science.

 

Sources:

  • “Building Tension in Your Writing” by John Dean, Crime Writers’ Association.
    “Red Herrings in Mystery Writing,” Mystery & Suspense Magazine.
  • “Tips for Handling Pacing in a Thriller Novel,” Writer’s Digest.
  • “Building and Maintaining Tension in a Thriller Novel,” Writer’s Digest.
  • “Red Herrings in Contemporary Crime Literature,” CrimeReads.

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