Good movie!. Why is it receiving such a bad response from the public?

For me just all the characters was so incredibly dumb that i almost wanted to yell at the screen, the father was dumb for leaving his children alone with this women for days who was recently in a cult that committed mass suicide.

And the children was dumb for hiding everything in the house resulting in them freezing and starving just to screw with Grace, and they also got her dog killed. Then we're supposed to feel sorry for them when Grace goes crazy and wants to murder them.

I've just never seen a movie before where all the characters are dumb as fuck, i mean what kind of fucked up kids do what they did? pretend to hang yourself shouting scripture, all to fuck with a girl who was in a cult that committed mass suicide? then they get all scared and crying when they push her too far and shes lost her mind.

I wanted Grace to fucking kill those kids by the end, she was nothing but nice to them, watching movies with them, fixed them food, and they killed her dog and drove her crazy, and they knew they was gonna drive her crazy what other kind of result could there have been with what they did?

From posts here and in other places it seems like most people just didn't understand the movie. The cult she was a part of drew parallels from a cult called Heavens Gate who committed mass suicide in 1997 believing a UFO tailing the Hale-bopp comet was their ride to another life. They also had 39 members, had purple shrouds over their heads, were laying in their beds with shoes neatly placed beside them. There was also a video taken much the same, however it wasn't filmed by a young girl survivor. Grace was clearly a child when she is shown filming the dead members of her cult and now as an adult still has to live with what she went through, this is why she was on pills. The father was researching cults and had an affair with Grace. His current wife didn't want a divorce and killed herself instead of facing life. The children had already hated Grace for breaking up the family and when the mother takes her own life they blame Grace, but not the father. The children had clearly planned everything from the start. We get a hint of that by the way the bodies are arranged in the dollhouse. After the father leaves, they enact their plan, they knew he would leave because he says they will be with Grace alone for a few days before he can return, he says this at the outdoor dinner scene. Grace clearly wants to connect with the children as we learn it was her idea to be alone with them for a couple days. It starts with the gas heater, the daughter says she is cold, so the son runs and gets it. Grace even comments on the smell and asks if it is safe to use inside, the son reassures her it is safe. Its not because if the pilot goes out it can lead to asphyxiation due to gas filling a room or tent while you sleep, which they use to their advantage. Also note the son made Grace some hot chocolate that the daughter wants nothing to do with when offered. This is how they had time to remove everything from the lodge, she was given a sedative.

Some people were bothered by the bad decisions made by the characters.

The dad's fiance seemed to be doing well when she was around him. I think he underestimated how bad her problems really were. The kids were disturbed after their mother committed suicide and blamed the fiance.

People do make bad choices like that, though. You hear about it in the real world all the time. Sometimes they'll do things even stupider than this man did. It's not unrealistic that this guy would make a really bad decision. I think the kids thought she might commit suicide because of their gaslighting, or they just wanted to make her suffer. I also don't think it's hard to believe that it would backfire the way it did and she'd take the family with her.