I have a brain so the huge plot hole ruined it for me.

Rating: 5/10 (7 January 2019)

Maybe this movie could become the next Rocky Horror audience participation movie! Where somebody figures out appropriate things to yell at the screen. Like when Douglas suggests they stay at the supermarket...the audience could yell YES YES YES. Then they argue about not doing that and again ..NO NO NO.
This movie is like an encyclopedia of used movie tropes and stolen things already seen.The one movie they should have copied was Dawn of The Dead that solved the supplies problem.
Because with the scenario of being holed up, blindfolded and trying to scavenge these people should all be dead within weeks without having a large food source found. Why don't you try it. Have somebody watch you for protection, get blindfolded and try to just make it to your next door neighbors house front door. Then think about having to do that, 3 times day and successfully break in, find food and make it back to your house. Without dropping everything 12 times and such.
Food is required for survival. There just was not enough food available to survive even a few months, for 2 adults, 2 growing children, and how long before the house population was finally whittled down to just that. Have you ever seen a family of fours groceries? Even trying to ration. You've got a woman who needs to nurse 2 children. close by house scavenging ...they might have lasted 1 months total. With him out scavenging 2,3 times a day.
Remember that Castaway movie with Tom Hanks. How does he survive? He become adept at fishing. We're shown this. Otherwise the viewers would be wondering how the hell is he surviving?
This HUGE plot hole could have been easily solved. All they needed to do was make Douglas a survival nut with a basement full of long lasting food supplies. Or a neighbor house was owned by one. "Mr Wilson was one of those survival guys, I'll bet he's got a few years of rations, we need to get to his house" But unless they found a large food supply the survival longevity makes no sense whatsoever.
This gets compounded by a factor of 100X with the ending. What are ALL these people eating?
Leaving the water still running was a cute touch, because apparently somebody figured out without that they'd die in a week. Of course it was ridiculous, but showed somebody had a few brain cells.
This is by far not the movies only flaws, but if they all starve to death, there's nothing else to continue with.