Here Alone (2016)

Here Alone, a more somber, existential take on the zombie genre, won the audience award at the 2017 Tribeca Film Festival for its apocalyptic gloom and doom. Lucy Walters stars as Ann, a wife and mother who leaves her home with her husband and baby daughter when the epidemic that turns people into blood-thirsty monsters begins to spread. They go to the upstate NY wilderness to hide away from the infected, but when her husband and baby die, it's just Ann left - until she meets a teenage girl and her stepdad Chris and takes them in.

There's not much need for clothing when you live in the forest all by yourself, and Lucy takes advantage of the alone time by taking a few mud baths in the river and showing boobs, and butt, and then bares her buns again when she pees by a tree. We you're alone too - you're gonna need the solo time!