Radiance is an exuberant black sabbath for three great Indigenous dames. Cressy, Nora and Mae are half-sisters with little in common except the ghosts of their childhood. They gather in the tropical Queensland landscape for Mum's funeral. These three sisters are a force of nature, and they haven't been in the same room for many, many years. It isn't long before that old house can't contain the joy and pain of them all being together again.