A Nightmare on Elm Street
Listen, we love the sequels to A Nightmare on Elm Street just as much as the next guy, but the 1980 version has all the rest beat. Wes Craven unleashed Freddy Krueger onto a generation that was, frankly, not prepared to be afraid of going to sleep. All other Freddy Krueger movies are great, don't get us wrong, but this one takes the cake.
A Tale of Two Sisters
This 2003 fright-fest is about a sibling duo who are growing up together in South Korea. They live normal lives outside of the fact that they've been getting haunted by a terrible poltergeist that's controlling everything they do. Or, are they making all of it up? You'll have to give it a watch to figure that out.