Bored, restless and lonely, Ali never expected her life would change as dramatically as it did the day she walked into the local Stop & Shop. But she’s never met anyone like Justine, the store’s cashier. Ali applies for a job on the spot, securing a place for herself in Justine’s glittering vicinity. As Justine takes Ali under her wing, Ali learns how best to bag groceries, what foods to eat (and not to eat), how to shoplift, who to admire, and who she can become outside of her cold home, where her inattentive grandmother hardly notices the changes in her. Ali becomes more and more fixated on Justine, reshaping herself in her new idol’s image, leading to a series of events that spiral from superficial to seismic.