Sarah Winchester, the millionaire heiress to the Winchester Arms fortune, is convinced that she, and her family, are being haunted by the souls killed at the barrel of the infamous rifle. Her obsession has led to the 24 hour a day, 7 days a week construction of an enormous mansion, designed to keep these evil spirits at bay.
Eric Price, a psychiatrist with a sordid past, is hired to investigate Mrs. Winchester’s sanity, only to discover that her obsession may not be so insane after all.