Con Viento en Pelo begins and ends with the approaching rumble of a train engine. For the young protagonists of the film, the train represents both a source of freedom and an interjection of cold, adult reality into their innocent, sheltered existence. This film forgoes a traditional narrative in favor of an exploration of the sensations that accompany the burgeoning adolescence of four Argentinean girls. This causes the film to unfold as a documentary of emotions, so to speak, rather than a conventional movie. Director Lynne Sachs is far more concerned with capturing textures, sounds, and feelings, the ingredients of memories, than action or dialogue. For example, in an early scene, Sachs juxtaposes a soft-focused close-up of a fluffy, wet dog with the cold, austere barbed wire fences of the Buenos Aires slums.