The true story behind 'Molly Hartley' is somewhat of a mystery. But we can make some educated guesses. Given that the movie has elements of the occult and psychological turmoil, the real - life inspiration might have come from a person who had some sort of encounter with the unknown. It could be that there was a real - life situation where someone felt they were being haunted or influenced by dark forces. Or perhaps it was related to a person's struggle with mental illness, which was then dramatized in the movie with the addition of horror elements. It's also possible that the true story was a combination of different real - life events, all woven together to create the complex and spooky narrative of 'Molly Hartley'.
I'm not entirely sure about all the details of the true story. But usually, if a movie is based on a true story, it might be about a person's struggle, like Molly Hartley's in the movie. Maybe it was inspired by someone's real - life challenges, either psychological or in their relationships.
Unfortunately, not a great deal of information about the exact true story behind 'Molly Hartley' is widely known. However, we can assume that since it's a horror - themed movie, the true story might have involved some sort of disturbing or unusual events. It could be related to a real - life individual's experiences with the supernatural, or perhaps it was based on a series of strange happenings in a particular place. Maybe it was also influenced by someone's battle with inner demons, like Molly's character in the movie seems to be.