Crew members reported seeing floating blue and purple lights, shadow people and an apparition of an old man while on set.
The Hanover House was filmed in an actual haunted farmhouse in the mountains of western Maine.
The Hanover House is the first horror film that actress Anne Bobby has done since Clive Barker's Nightbreed.
The first three days of production occurred during a Maine blizzard.
A bluray copy of The Hanover House was given away to VIP package holders of Horrorhound Weekend Cincinati 2015