The narrative of a horror film does not have to have Bullitt's Mustang at full throttle every second or blood and gore fogging up the movie or TV screen. Films about people, how they survive, move forward, or at least try to do that are, for me, ultimately more interesting and more moving. With spare details to go on and information during flashbacks about the female protagonist, Ann, and her family (Jason and their baby) filling in, you are left to use your imagination about how an illness not named decimated the United States. Ann has been on her own for a year when we meet her and we watch her daily routine just to stay alive and away from creatures who were once human. Eventually, she meets two other survivors who fill up some of her loneliness, but inevitably with human beings and all of their quirks and hidden emotional turmoil, events shift rapidly.
If you can't watch stillness, listen to the sounds of nature, and let yourself be immersed, you won't be able to watch this film. Just know it's the stillness and beauty of the remote area juxtaposed with some horrifying moments that brings out the intensity of trying to survive day by day in this post-apocalyptic world. The actors who bring these characters to life are strong, mostly because they seem like real people, not actors trying to "be" real people. I cared about all of them and enjoyed the ride immensely.