5 Horror movies based on real-life events: 'The Conjuring', 'The Exorcist,' and more

The scariest horror films are not the ones with the most elaborate monsters or the most expensive special effects. They are the ones that end with the words based on a true story, because nothing the imagination can conjure is quite as disturbing as knowing that something like this actually happened to real people in the real world. Here are five horror films rooted in events that were genuinely, terrifyingly real.