On the run, Marian returns to her hometown to hide out with her estranged identical twin sister, Vivian, a stay-at-home housewife struggling to conceive and on the verge of a failing marriage. Though the two are identical twins, they lead opposite lives. Marian’s mysterious return disrupts Vivian’s small-town routine and the sisters must learn to reconnect and reconcile. When Marian's haunting past finally catches up to her, their separate worlds collide, catapulting both into grave danger.