40 Horror Movies That Were Based On True Stories

There's nothing scarier than a true horror story.
That's something Hollywood knows well, which is why there are so many classic and contemporary horror films that are based on true events.Some of these films stray far from the bounds of reality, while others stick true to their non-fiction source material. Either way, they're all terrifying in their own rights.How many have you seen? Let us know in the comments below.
The Blob (1958)
The fiction: An alien blob terrorizes a small town in Pennsylv