The film had good actors and good cinematography. Lots more could have been done with the house though I think, apparently, there are dead end corridors and staircases leading to nowhere in the house. Could have used that more in the film maybe.
One thing I don't get is, instead of trying to heal spirits who died thanks to her company products, why didn't she just sell the company and quit and move on to something else? All the money from the guns seemed to be going into building more rooms in the mystery house. Wouldn't it make more sense to stop selling guns and stop killing people and save money, and not add more building work? Not to mention it would help save loads of lives, and stop adding on nonstop bad karma. If she feels so guilty about all these lives lost then surely she would just figure out what the obvious thing to do is?