Rebecca's Grave

I live in a small city in Canada named Moncton. It has a legend about a Witch named Rebecca. The legend leads to a grave. So naturally, we named the urban legend, Rebecca's Grave.

Short story is: Rebecca was an accused witch that was believed to be killing local livestock for her dark and spoopy magic. They executed her, buried her, and filled in the grave with concrete.

A few years ago a guy started making a movie about it. He elaborated on the story and intertwined it with unsolved disappearances that he could tie to the grave. It got a huge local following, then the guy fricked it up by doing a limited release. Even a lot of locals didn't get to see the finished product. That pissed people right off and killed the hype.

Now it's just a creepy slab of concrete on the side of a road that gets unusually foggy at night.