London, 1985. Amid tower blocks and shell suits, Walter and Agnes Easmon's life revolves around quiet routine. They arrived from Sierra Leone 13 years ago, earning enough to pay bills with some left over to send back home. Walter works at a factory alongside his friend "Bagpipes", while Agnes sells make-up door-to-door. Their son Kobna and his friend Dean hang out on the estate, playing football and dodging local thugs. Then, Walter's brother Valentine arrives, bringing exuberance, music, and chaos. He finds work, falls in love, and sparks Kobna's passion for music.
Walter receives a letter from his mother telling him that his younger brother...