6. The Texas Chainsaw Massacre (1974)
The only thing scarier than a chainsaw-wielding cannibal is a chainsaw-wielding cannibal with a twisted leather hood over his face and an equally twisted brother that he’s in cahoots with. The fact that this 1974 slasher classic was banned in several countries when it first came out is testament to just how terrifying Leatherface is.
5. Henry: Portrait of a Serial Killer (1990)
The low-budget grit in Henry brings it a realism that is truly haunting—especially since the film is based loosely on real life murderer, Henry Lee Lucas. The scariest thing here is the cavalier nature of the killer—Henry is a classic sociopath: unfeeling, unremorseful, unpanicked and unphased by his own disgusting actions. And that’s just too real to be anything but terrifying.