The plot: Sarah Winchester (Helen Mirren), after the death of her husband, has inherited his firearms company. She has become convinced that the victims of her husband's weapons are now haunting her, building expansions to her already-illustrious estate house in order to capture them. As her fellow employers start to wonder about her sanity, they send in doctor Eric Price (Jason Clarke) to assess her mental state and whether she is fit to continue running the company. However, soon after arriving, it seems that things aren't so simple as just declaring her insane.