Is Howard their saviour or kidnapper?

Rating: 8/10 (13 March 2016)

After Michelle gets into a car crash, she wakes up in an underground bunker with two men. The girl assumes she and Emmett have been abducted by redneck Howard, but then learns that she has actually been saved from an apocalyptic event of some kind because the air is now poisonous. However, there is a good deal of doubt about this, so much of the tension in the movie is based on Michelle's uncertainty about whether Howard is lying. Is he a good guy or is he a "horror opa" as we say in Dutch.
SPOILER! Shocking events take place that confirm both sides of the story are true: something terrible is happening up top and Howard is a homicidal kidnapper of young girls. Yes, this is tangentially at least an apocalyptic movie about alien invasion; however, it is also a gripping story about forcible confinement.
At first this movie bothered me because of Michelle's emotional state and utter stupidity. She has the accident while texting in the car. The start of this movie will appeal more to those who think women are emotional wrecks, dangerous drivers and helpless ninnies. However, as the movie progresses this problem dispelled for me. We see Michelle's strength emerge. She becomes a strong figure who does what she needs to do to try to survive.
The movie seemed to be implausible at first and based on an absurd writing prompt. It does have an artificial, crazy story line. Some of it reminded me of "The Divide", to be honest, especially her escape at the end.
However, it worked well. I enjoyed it. All three actors played their roles well.
From what I can see, this movie has nothing to do with "Cloverfield", although there is apparently a cinematographic connection of some kind.