When Liz, a lonely stay-at-home mom, forms a liberating alliance with the spontaneous Rosa, she gets sucked into a world of stolen cars, unstable sisters, and paranoia. Liz is struggling to adjust to her new life as a mother. With her husband in a different country for work, Liz has left her job to stay at home and care for their baby, Nicanor. Making things worse is the judgmental nanny she has hired and a cliquey group of overly enthusiastic parents. Feeling lost and alone, Liz begins taking Nicanor to the neighborhood park, where she strikes up a friendship with the blunt, spontaneous Rosa. From a dine-and-dash adventure to sharing fears about motherhood, Liz feels an immediate, liberating bond with Rosa. This freedom soon turns to paranoia, however, as Liz begins to suspect Rosa's true intentions as she is drawn into Rosa's world.