The story of this horror film is based on real events; the actions took place in the late 19th century. The well-known widow Sarah Winchester, who was the owner of the weapon company ‘Winchester,’ lived in her huge mansion, which numbered more than 500 rooms. This mysterious house was constantly modernized: new rooms were added, new walls were erected, new corridors were like a maze, and a ghost in every room. It's hard to believe in something that can't be seen or impossible to explore, but Dr. Eric Price, who arrived in the mansion at the invitation of Sarah Winchester, will change his mind soon. This is the most sinister house, only here live: ghosts, demons, spirits, and poltergeists, something that can kill you any second. But the residents of the mansion are waiting for the meeting with the strongest ghost, who wants to end the Winchesters clan.