Someone on here says this isn't original and apparently there is another film with similarities entitled A Breath Away, though it seems to have many logistical flaws according to some of the reviewers on here. Looking at the trailer, it seems to be somewhat of a different animal with a lot more action, more special effects and a lot more outside scenes. I might take a look. I didn't think there were any real logistical flaws within this bizarre scenario of two people who meet for a one night stand while the world is covered with deadly pink clouds and they cannot be exposed to the toxic air or they will quickly die, so this is where they stay. Not that a immense of a problem, but for how long is the real issue. The entire rest of the film takes place in this apartment. For something with such a limited scenario, this becomes really interesting. This event just goes on and on and they are forced to live their lives together until this ends, if it ever does. Beyond their relationship shifts over time, both good and bad, there are plentiful stories here as seen through cell phones, tablets, people in other windows, etc. What we see through these lenses are also fascinating. This is a very well directed film that wastes little time with setups to get to a point. The editing is exceptional and there are a couple of very solid performances from the two principals. It's sad and sometimes it's even lovely, but it's mostly peculiar. I am glad I stumbled upon it. It's very intriguing.