The thriller, which plays out in real time, follows a single afternoon in the life of an elementary school teacher as she organizes a mixer of like-minded women. When the group heads home, the teacher encounters a woman from her past, leading to a volatile chain of events.
It's the Wild West, circa 1870. Samuel Alabaster, an affluent pioneer, ventures across the American frontier to marry the love of his life, Penelope. As his group traverses the west, the once-simple journey grows treacherous, blurring the lines between hero, villain and damsel.