20 Horror Movies Made Even Creepier by True Stories They Based On

Reality is even more ruthless than fantasy could ever be, humans being the most creative beings in their torment, so true events often serve as the basis for the most successful horror stories. And knowing the origins of the plots of these 20 movies makes them even more terrifying.

There's something disturbingly eerie in the words "based on a true story" flashing before your eyes because knowing that someone in the real world was capable of doing something akin to what happens on the screen is quite uncomfortable.

These people are here, with us, roaming the streets and doing their things — up until they don't. These people are here, with us, and witnessed things that left them broken. The only popular horror movie that we're bitter about is 'Jaws' because it changed the humans' perception of sharks and made people much more afraid of them than they should be.

Trust us, sharks are not that interested in us and don't pose much harm. People are significantly more dangerous. That doesn't mean that we should all become hermits, right? So just go swim in that sea.