The Disappearance of Evelyn Hartley

The scene is a peaceful suburban setting in an area where trouble rarely calls. Excitement fills the air as a big community event ensues, but in one house there is a studious babysitter quietly reading her books while the radio plays softly and the children in their charge sleeps peacefully upstairs. Nothing seems out of the ordinary until the sitter meets a terrifying and untimely end at the hands of a deranged, usually masked, villain. It's become something of a trope in horror movies ove...