Blues music, the film argues, was built on borrowing: artists across the deep South and beyond lifting phrases, riffs, and structures from each other and reshaping them into something new. Expert interviews and archival footage trace that lineage from the genre's earliest days to its place in mainstream popular music today, treating imitation not as theft but as the basic mechanism of creative growth. The film uses blues as a case study for a broader question about art in general: whether copying is how every tradition actually gets made. It also keeps the genre's origins in view, tying the music's development to African American culture and the experiences that shaped it, so the argument about creativity never fully separates from the argument about race and identity. The result is less a straight history than an extended argument, using the blues catalog as evidence for a claim about how all artists actually work.