This is a decent flick about the two different people's response to a devastating pandemic. Similar to the Covid outbreak, each person may be able to confront or not confront the seriousness of what's happening. One character has a logical response to it and does every little thing that needs to be done for safety. Others here have said that to he second character is whiney and selfish, but those are just symptoms of someone who can't really accept what's happening or face it logically and get with the program. It's a mental fitness sort of thing - how much harsh reality can each individual face. In a pandemic, those who can face a harsh reality have the best chance of surviving.
This is no blockbuster, with numerous large dramatic scenes of many humans dying. It's a character study of two people equally in pain, trying to do what they think they need to. One is concerned for their physical survival, the other for their emotional survival.
In our own Covid pandemic, some people wear masks, socially distance, and disinfect. Others are more concerned about keeping their same routine as before instead, to keep life seeming " normal".
The settings are believeable, and like in life, most of the "bad guys" we see are not one dimensional, and do have some degree of compassion for others.
If you expect an action flick or gory zombie flick, this is not it. It's a couple of individuals who care for each other trying each to survive in whatever manner they see as "best".