They were given the moniker "shadow people," but that is not exactly how they appear. These beings, usually 3-4 feet tall (sometimes full height or tall), are human shaped and completely utterly devoid of details to be a kind of "black hole" of humanoids. It's what they do and where they are that is scaring people.
In this post, I plan to shatter some of the earlier concepts of what shadow people are and it might just be even more unsettling than popular assumptions....