From Amityville to The Exorcist
Why "True Story" Horror is So Profitable
When I was a kid, The Amityville Horror terrified me. Not just the film, but the idea that it happened in real life. I think that is why Jaws altered my excitement about going to the beach.
In the case of The Amityville Horror, this wasn’t just something someone made up. This was a real house, real people, a real story. Or at least, that’s how it was presented and what I believed at that time as a kid.
Like a lot of others, I didn’t stop at the movie.
I became a bit obsessed with learning more about it.
I went on to read several books about the true story behind it, which only deepened my experience. It made the whole thing feel more plausible in my middle-schooler mind.
While I’m more cynical now about the veracity of what was claimed, I must admit that to this day, houses that look like the one in the movie give me the creeps. I probably would never buy one. I guess it is like the impact of Jaws on my enthusiasm for swimming in the ocean. I much prefer a pool where I can see the bottom.
Speaking of swimming, while on vacation this past summer, I watched the original film again with my son Charlie. We watched The Amityville Horror after seeing Jaws together from our rented condo on the beach.
It was the same story. Same house. Same windows staring back at you in the dark.
But I saw something completely different this time, thanks to my work and new obsession with digging into the story behind the storytelling. That is when the light bulb went off for me that "horror" - one of the most profitable genres in filmmaking - had a "based on a true story" sub-category.
The Amityville Horror was one of the most profitable independent films of that era. That insight came at a critical time for me as I'm developing my business plan around our studio's slate approach.
What once felt like a terrifying story now looked like a piece of intellectual property that had been adapted, repackaged, and repeatedly monetized over decades. When I went to find the film to watch with Charlie, I found multiple versions had been produced. That’s when it clicked for me.
The most interesting thing about “true story” horror isn’t the scare. It’s the source material. It also made me realize that one of the most profitable genres in film – horror – has a true-story side that could become part of the slate approach we are developing with our studio.
The Exorcist
Not long after rewatching The Amityville Horror, I found myself thinking about another film that had a similar hold on me growing up—The Exorcist.
For me, that one hit even closer to home.
I was raised Catholic and educated in Catholic schools in St. Louis, so the idea of exorcism wasn’t just cinematic; it existed within a world I understood.
I quickly learned that The Exorcist wasn’t simply imagined. It was inspired by a documented 1949 case that took place, in part, right here in St. Louis, involving priests connected to Saint Louis University and accounts that were written down, preserved, and circulated.
Again, the same pattern emerges.
A story that existed before the film. A set of events that were documented. Accounts that were recorded. And then, eventually, a book and a film that translated those underlying materials into something that reached a global audience.
True Story Horror
If you step back and look at The Amityville Horror and The Exorcist side by side, what you start to see is not just two highly profitable, iconic horror films. You see a blueprint.
In the case of Amityville, you have the real-life murders committed by Ronald DeFeo Jr., followed by the experiences claimed by the Lutz family. Those events were shaped into a bestselling book, and that book became a film. Over time, that single thread of source material expanded into a franchise with multiple sequels, remakes, and reinterpretations.
In the case of The Exorcist, the foundation begins with a documented exorcism case, supported by accounts maintained by clergy and written records that circulated within a religious context. Those materials inspired a novel, and that novel became one of the most influential films ever made.
Different details. Different subject matter. But the same underlying structure. These stories weren’t created in a writer’s room. They were sourced. And that’s the part most people miss.
We tend to talk about these films as stories, but from a business and storytelling standpoint, they are something more precise than that. They are layered source material.
They are built on a combination of firsthand accounts, institutional records, documented cases, media coverage, and written adaptations that evolve over time. Each layer adds credibility. Each layer adds depth. Each layer creates another entry point for adaptation.
When you look at it through that lens, you begin to understand why “true story” horror is one of the most consistently profitable genres in film.
Audience Awareness
First, it solves the hardest problem in storytelling right out of the gate. Attention.
The phrase “based on a true story” accomplishes something that marketing campaigns spend millions of dollars trying to achieve. It answers the audience’s first question before they even ask it: Why should I care?
Because it might be real.
Whether every detail holds up under scrutiny is almost beside the point.
The suggestion of truth creates a level of curiosity and emotional investment that purely fictional stories often must work much harder to earn.
Second, the economics are incredibly efficient.
Horror films, as a category, tend to be relatively inexpensive to produce compared to other genres. They don’t require massive set pieces or global locations, and they don’t depend on A-list talent to carry the film. Instead, they rely on tension, atmosphere, and execution.
When you combine that cost structure with a built-in marketing hook like “based on a true story,” you create a model where the downside is limited while the upside can be significant.
That dynamic explains why so many of these films continue to get made.
But that still doesn’t fully explain their longevity.
The third factor is the most important and the most relevant to what I spend my time thinking about. True story horror doesn’t just have a strong starting point. It has a renewable source.
Unlike purely fictional stories, which exist only as long as the imagination that created them, true story horror draws from material that continues to exist outside the film itself. Police records, court filings, news archives, personal journals, and institutional documentation all serve as ongoing sources that can be revisited, reinterpreted, and redeveloped over time.
In many cases, these materials are publicly accessible. In others, they are privately held by the people or organizations that created them.
And that’s where the conversation shifts from storytelling to ownership.
Copyright-Protected Source Material
Because here’s the reality. The story may be “true,” but the rights to the “expression” of that story are owned.
Journalists who report on events create original works that are protected by copyright. Media organizations that publish those stories control how that reporting can be used, licensed, or adapted. Authors who write books based on real events create their own layer of protectable intellectual property. Families, estates, and participants may control access to firsthand materials, interviews, and personal archives.
What appears to be a single story from the outside is often a collection of rights scattered across different places.
And whoever understands that and takes the time to organize, secure, and develop those rights is the one who creates value. That is driving my interest in making this genre part of our balanced slate of true stories.
Using The STORYSMART® Framework
This is where everything connects back to the philosophy behind STORYSMART®.
When I talk about organizing your story, I’m talking about identifying and assembling the exact kinds of materials that underpin films like The Amityville Horror and The Exorcist.
When I talk about capturing your story, I’m referring to conducting interviews, documenting firsthand accounts, and preserving details while they are still accessible.
When I talk about preserving your story, I mean building an archive that ensures those materials don’t get lost, fragmented, or controlled by someone else.
When I talk about developing your story, I’m referring to working with professionals like screenwriters who understand how to translate that source material into something cinematic.
And when I talk about producing your story, I’m talking about making strategic decisions about how that material is ultimately brought to market by a creative team of professional storytellers.
Because if you don’t do those things, someone else will.
That’s not hypothetical. That’s how this industry works.
The events that inspired The Exorcist were documented by others before they were ever adapted. The story that became The Amityville Horror was shaped and framed through a book before it reached the screen. In both cases, the versions the world came to know were organized, developed, and controlled in ways that made them adaptable.
This is why this topic matters beyond horror films.
For public figures, families, and anyone who has lived a life that intersects with events worth documenting, the takeaway is straightforward. Your story has value, but only if it is organized, preserved, and controlled. Otherwise, it becomes something that others interpret, express, and potentially monetize.
For creators, the lesson is just as important. The most valuable stories are not always the ones you invent from scratch. They are often the ones you source, research, and develop with care. The ability to identify compelling real-world material and build relationships around it is one of the most powerful skills in this business.
There is a reason that the majority of “true story”-based narrative films start with a journalist. They did all the hard work of expressing that true story in a form that can be copyrighted. It isn’t the fact that it happened that can be protected under intellectual property laws. It is the expression of that story in tangible form. More often than not, that process began with a journalist, writer, or documentary filmmaker who put in a lot of work to craft an engaging story.
And for anyone thinking about the future of storytelling, whether as a creator, investor, or collaborator, the pattern is hard to ignore. The films that endure are not just well-made. They are built on foundations that extend beyond the screen.
When I think back to watching The Amityville Horror as a kid, I remember the fear. When I think about watching it again with my son, I remember the structure. I see the book behind the film. I see the events behind the book. I see the layers of material that made it possible to revisit that story again. And I see the same thing when I look at The Exorcist, now with the added perspective of understanding its connection to St. Louis and the documented accounts that preceded it.
What once felt like two of the scariest stories I had ever encountered now look like something else entirely. They look like case studies. Examples of what happens when a story is documented, developed, and brought to market in a way that allows it to endure.
The scariest part isn’t the haunting. It’s how valuable that story becomes once someone realizes what they really have.
About the Storytelling for ALL® Newsletter
The Storytelling for ALL® LinkedIn Newsletter is a biweekly newsletter examining how stories are developed, protected, and brought to life in today’s evolving storytelling economy.
Every other week, I explore the creative, ethical, and economic forces shaping books, films, documentaries, and other story work through the lens of development, rights, collaboration, and long-term value.
Written primarily for creators and collaborators, the newsletter also serves story sources who want to understand how their true stories move from lived experience to finished work and how better structure early leads to better outcomes later.
For deeper studio thinking, tools, and updates, The STORYSMART® Way is our monthly email newsletter for members of the Storytelling for ALL® community.
About Our STORYSMART® Perspective
We approach storytelling and filmmaking as a long-term, rights-first business rather than a project-by-project creative exercise. Our focus is on understanding how stories create value over time through ownership, disciplined development, and thoughtful risk management.
The ideas shared here are intended to contribute to a broader conversation about sustainable, independent media, not to promote specific projects or investment opportunities.
