On paper this might have seemed interesting but in execution there are so many gaffs that it led me to believe that the writers, director and producer either think the audience is stupid or they are. Maybe they just found it too difficult and gave up.
There's not much to say about the story except that it's kind of impossible to spoil a story about a woman trapped in a floating container at sea. However there are so many annoyances and very dumb gaffs that I'll highlight a few here, if only for the sake of amusement and venting.
She finds a smartphone and tries to unlock it by tracing the pattern randomly at a million miles an hour without noticing that she's going so fast that she only traces the first two dots in a line. The phone shows the attempted pattern as a handy aid but no, she just bats her finger across it as if swatting flies. Also, she doesn't attempt to dial emergency services which you can do from a locked screen on all phones.
She saws through plate steel with the tiny saw from a swiss army pocket knife. Nope.
Her first smartphone wouldn't work, had no reception being in the middle of the ocean and all, but a few minutes later she swaps out the Sim card and it suddenly has reception. Must be the Clamshell Network. Oh, and when she lost this phone she apeared to throw it away like a hot turd and then pretend it was an accident.
She had the quickest birth in history, three pushes and voila!
She tries to plug bullet holes with sticky tape when there's a crate of bottled alcohol with corks in the tops.
Her drenched clothes are suddenly dry even though she's wading around in a half filled/submerged steel container. Dry ... yes that old chestnut we've seen so many times in other films. Do they learn nothing in film school?
And there are more gaffs but you get the picture.
She doesn't seem that upset about much and the acting is mediocre at best, although it's all on the shoulders of one actress so that's hard but perhaps also a mistake. I don't think the story would have changed much with two actors present, would probably have been better.
Overall it's badly written which is saying something when all they had to do was get the details right, given the sparseness of cast, scenes and props how difficult could it be? As filmed entertainment, Nowhere essentially went nowhere.