First 20 minutes was okay.
Then bam power shortage and no gas in the generator.
Long story short, it's been a whole (gasp!) 2 (two) days since the electricity was gone and those college kids started thinking about imminent (sic!) death from hypothermia and maybe starving, aha. There is plenty of snow around, you can boil it and survive a month at least without food at all, just on water. Also, you can watch a bunch of YouTube videos, like "She has been Living in a Cabin in the Forests of Sweden for 8 years Home Tour" - there is a room tour in a cabin without electricity.
Of course, you can get hypothermia indoors, in a bad shack with huge holes, without availability to cover those holes, without clothes, blankets and with no heat at all. But, in a well-builded house, with a fireplace, tons of insulatable materials, the whole forest and trees and bushes around and wooden furniture in the house, unlimited water source from crappy CGI-snow, a med college student came up with a brilliant idea about sleep deprivation to avoid this (imminent, duh) hypothermia. I don't know, maybe they are on some sort of heavy drugs? Looks like the scenarist (director himself) was cutting logical corners in the script too much, going to the point of "oh I will show a cool movie about sleep deprivation".
If you try to believe in this film and watch it till the end, there is bad news for you - the CGI-snow will become more crappier at the end.
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