Inside the haunted history of shadow people and the forms shadow people have taken throughout historic times. From demons in ancient Sumer to shadows in ancient Egypt to shadow people during the spiritualism movement of the 1800s, we take a look at a variety of reports of shadow entities throughout time immemorial. Includes a rundown of accounts of the Old Hag Syndrome shadow person phenomenon from across the world... or are they really the same haunting that's occurred for thousands of years?