13 Creative Writing Prompts for Psychological Thrillers and Horror

Get inspired for your Halloween writing projects with these warm-up exercises and ideas from pro writers

From campfire tales to creepypastas, scary stories have taken many forms over the years. While a thriller tends to have a fast pace, and horror focuses more on suspense and tone, these two genres have a lot in common, like high tension and unsettling effects.

From haunted houses to serial killers to ancient monsters, there seems to be a limitless well of ideas out there for thriller and horror writers. But if you’re looking for somewhere to start with your Halloween creative writing, we've rounded up 13 prompts shared by professional writers below.

These prompts can be used for any narrative fiction, whether you write short stories, novels, screenplays, or just about anything else.

What is a writing prompt and how do I use it?

Writing prompts are everywhere online nowadays, with sites like Pinterest and Instagram being packed with aesthetically-pleasing bullet point lists of story ideas. They provide a core concept that you can base your own original work around. Not only can this help to beat writer’s block, it can also open your creative mind.

There are many reasons why writers might turn to these exercises. Some choose to do “morning pages”, or free writing sessions to warm up, with no intention of showing the work to anyone. Others might be looking for fresh ideas during the research phase for a project they hope to work on. Finally, some might use writing prompts for fun, trying them out with friends or a workshop to find out how everyone responds differently.

Halloween creative writing prompts

It’s the perfect time of year to get cozy at your desk or in a café, and lose yourself in composing a spooky story. That’s why we teamed up with some of Domestika’s writing teachers to get you started with creepy characters, scary scenery, and unsettling situations.

Our three teachers are screenwriter and indie author Mark Boutros (@mboutroswrites), who wrote The Craft of Character; award-winning novelist Emily Barr (@emily_barr), who writes thrillers for adults and young adults; and Raquel Castro (@raquelcastrom), author of teen horror novels, essays, short stories, and much more.

Without further ado, find their prompts below, and start writing!

Opening sentence prompts

Let’s start with two chilling opening scenes from Mark, which could form the beginnings of a “whodunnit” or mystery thriller. Try considering what plot beats or key moments would follow, and what the end point might be.

1. Sarah searched through the final dusty box, the last of her dead mother's belongings, and while she couldn't find her mother's will, there was a photo album, and in it, several photos of her mother with a child that wasn't Sarah nor her sister, Bronagh.

2. He hadn't had any visitors for years, ever since he'd told everyone in the village exactly how he felt about how they'd treated his wife before she passed away. So who could be ringing the doorbell at this hour? He limped towards it, his slipper souls slapping against the wooden floor. He called out but nobody answered, so he opened the door forcefully, but nobody was there in the darkness, but on the doorstep, a cassette with a sticker and a nickname he hadn't heard since school, 'Stinger', written on it.

Meanwhile, Emily offers this intriguing opener...

3. I was sleeping soundly, for the first time in years, when I was woken by a bang on the door, an urgent shout, and barking dogs.

Setting and situation prompts

Here, think about your own strong opening image, then consider whether flashbacks, dialogue, or action scenes will reveal key information.

Raquel shares three imaginative exercises.

4. A certain classic horror story starts with the words “It was a dark and stormy night”. But how exactly does a “dark and stormy night” look? Describe it in as much detail as possible.

5. Imagine you are in a place where you usually feel comfortable and safe. Only now it’s totally in the dark. There’s no light that you could use. And then, you hear a noise that frightens you because it seems completely out of place there. What was that noise? What could be its source?

6. Look around your neighborhood and find a place that looks strange or eerie. Dream up (and then write) a story that could be told as the disturbing legend of that place.

7. Imagine that, near a crime scene, you find a backpack. When you open it, you sense it belongs to the criminal. Why is that? What does the backpack look like, and what’s inside it?

Emily offers the following ideas…

8. You go to visit your friend, but the person who opens the door tells you your friend moved away ten years ago. That can’t be true, because you saw them last week.

9. You’re standing at the top of a tall building, clinging on to a window frame to stop yourself falling, and you don’t know you got there.

10. You’re walking in your neighborhood, when a stranger hands you a package. You take it without thinking, and are immediately arrested.

11. You’re staying in a secluded holiday cottage by the beach. On the first morning you go out onto the terrace, and find that someone has spelt out the word MURDERER in stones on the ground. How did they know?

Finally, Mark offers these two prompts…

12. A young girl who keeps seeing a black, mangy dog every night when she looks outside the farmhouse window, ever since she overheard her parents discussing divorce.

13. A man in a broken marriage walks along a quiet beach when he finds a message in a bottle. It simply reads: Kill her.

These protagonists appear to hold dark secrets, or stand on the edge of huge discoveries. If you choose to turn one of these prompts into a story, feel free to link it in the comments below!

Craft chilling stories with these writing resources

If you’re keen to start but want a step-by-step guide to help you become a confident storyteller, check out these resources.

1. Master the tension and big reveals of horror writing for teens with this introductory course by Raquel Castro.

2. Character is key: learn about motivations, arcs, and more in this character development course by Mark Boutros.

3. To learn how to weave travel-inspired thriller narratives, discover Emily Barr’s course on psychological thrillers.

4. Unmask your fearless creativity with this Halloween-inspired Domestika courses pack.