Photo by AJ Thiede

A ragtag squad of Chicago-based paranormal investigators explain their work, along with some spooky stories.

Dave Olson, a Chicago police officer, and Matt Perry, a Chicago firefighter, double as the Chicago Paranormal Investigators. When they bring their equipment to haunted spaces, they often find more than anyone else might expect.

Video filmed, edited and produced by AJ Thiede
Additional footage courtesy of Dave Olson and Chicago Paranormal Investigators.