Poly Styrene was the first woman of colour in the UK to front a successful rock band. She introduced the world to a new sound of rebellion, using her unconventional voice to sing about identity, consumerism, postmodernism, and everything she saw unfolding in late 1970s Britain, with a rare prescience. As the frontwoman of X-Ray Spex, the Anglo-Somali punk musician was also a key inspiration for the riot grrrl and Afropunk movements. Featuring unseen archive material and rare diary entries narrated by Oscar-nominee Ruth Negga, this documentary follows Celeste as she examines her mother’s unopened artistic archive and traverses three continents to better understand Poly the icon and Poly the mother.