You return home from a paranormal investigation at 2:00 AM in the morning. The house is quiet—until a hallway light turns on by itself and three slow knocks come from inside the wall.

Did something follow you home, or has fear changed the way you are interpreting what is happening around you?

In this episode of Into the Shadows, Don Alter examines one of the most disturbing questions in paranormal investigation: What should you do when activity turns dark and you believe a possible malevolent entity has followed you home?

Drawing on his experience as a retired police officer and founder and senior investigator of Macomb Paranormal Investigations and Research, Don separates frightening activity from claims of demonic activity. He discusses why investigators should avoid confrontation, provocation and improvised rituals—and why pe ...